diff --git a/CHANGELOG.md b/CHANGELOG.md
index e615caad3..76d609560 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
     Bug #3733: Normal maps are inverted on mirrored UVs
     Bug #3765: DisableTeleporting makes Mark/Recall/Intervention effects undetectable
     Bug #3778: [Mod] Improved Thrown Weapon Projectiles - weapons have wrong transformation during throw animation
+    Bug #3812: Wrong multiline tooltips width when word-wrapping is enabled
     Bug #4329: Removed birthsign abilities are restored after reloading the save
     Bug #4383: Bow model obscures crosshair when arrow is drawn
     Bug #4384: Resist Normal Weapons only checks ammunition for ranged weapons
diff --git a/components/widgets/box.cpp b/components/widgets/box.cpp
index d38410a2c..b76e6d7d5 100644
--- a/components/widgets/box.cpp
+++ b/components/widgets/box.cpp
@@ -1,5 +1,9 @@
 #include "box.hpp"
 
+#if (MYGUI_VERSION >= MYGUI_DEFINE_VERSION(3, 2, 2))
+#include <MyGUI_EditText.h>
+#endif
+
 namespace Gui
 {
 
@@ -52,22 +56,54 @@ namespace Gui
         }
     }
 
+    int AutoSizedEditBox::getWidth()
+    {
+        // If the widget has the one short text line, we can shrink widget to avoid a lot of empty space.
+        // Unfortunately, getLineInfo method is available since MyGUI 3.2.2, so with older MyGUI versions tooltips will just have the fixed width.
+        int textWidth = mMaxWidth;
+
+#if (MYGUI_VERSION >= MYGUI_DEFINE_VERSION(3, 2, 2))
+        if (mShrink)
+        {
+            // MyGUI needs to know the widget size for wordwrapping, but we will know the widget size only after wordwrapping.
+            // To solve this issue, use the maximum tooltip width first for wordwrapping, then resize widget to its actual used space.
+            if (mWasResized)
+            {
+                int maxLineWidth = 0;
+                const MyGUI::VectorLineInfo & lines = getSubWidgetText()->castType<MyGUI::EditText>()->getLineInfo();
+                for (unsigned int i = 0; i < lines.size(); ++i)
+                    maxLineWidth = std::max(maxLineWidth, lines[i].width);
+
+                textWidth = std::min(maxLineWidth, textWidth);
+            }
+            else
+            {
+                mWasResized = true;
+            }
+        }
+#endif
+
+        return textWidth;
+    }
+
     MyGUI::IntSize AutoSizedEditBox::getRequestedSize()
     {
         if (getAlign().isHStretch())
             throw std::runtime_error("AutoSizedEditBox can't have HStretch align (" + getName() + ")");
-        return MyGUI::IntSize(getSize().width, getTextSize().height);
+        return MyGUI::IntSize(getWidth(), getTextSize().height);
     }
 
     void AutoSizedEditBox::setCaption(const MyGUI::UString& _value)
     {
         EditBox::setCaption(_value);
+        mWasResized = false;
 
         notifySizeChange (this);
     }
 
     void AutoSizedEditBox::initialiseOverride()
     {
+        mMaxWidth = getSize().width;
         Base::initialiseOverride();
         setNeedKeyFocus(false);
         setEditStatic(true);
@@ -79,6 +115,10 @@ namespace Gui
         {
             mExpandDirection = MyGUI::Align::parse (_value);
         }
+        else if (_key == "Shrink")
+        {
+            mShrink = MyGUI::utility::parseValue<bool>(_value);
+        }
         else
         {
             Gui::EditBox::setPropertyOverride (_key, _value);
diff --git a/components/widgets/box.hpp b/components/widgets/box.hpp
index 9bab575c4..2d9b497db 100644
--- a/components/widgets/box.hpp
+++ b/components/widgets/box.hpp
@@ -65,7 +65,11 @@ namespace Gui
 
     protected:
         virtual void setPropertyOverride(const std::string& _key, const std::string& _value);
+        virtual int getWidth();
         std::string mFontSize;
+        bool mShrink = false;
+        bool mWasResized = false;
+        int mMaxWidth = 0;
     };
 
     class AutoSizedButton : public AutoSizedWidget, public Button
diff --git a/files/mygui/openmw_tooltips.layout b/files/mygui/openmw_tooltips.layout
index bdc224ecd..70246fa4e 100644
--- a/files/mygui/openmw_tooltips.layout
+++ b/files/mygui/openmw_tooltips.layout
@@ -47,12 +47,14 @@
             <Property key="Padding" value="8"/>
             <Property key="Spacing" value="8"/>
 
-            <Widget type="AutoSizedTextBox" skin="NormalText" position="8 8 284 18" align="Left Top" name="CenteredCaption">
+            <Widget type="AutoSizedTextBox" skin="NormalText" position="8 8 0 18" align="Left Top" name="CenteredCaption">
                 <Property key="TextAlign" value="Center"/>
+                <UserString key="HStretch" value="true"/>
             </Widget>
 
             <Widget type="AutoSizedEditBox" skin="SandText" position="8 30 430 18" align="Left Top" name="CenteredCaptionText">
                 <Property key="MultiLine" value="true"/>
+                <Property key="Shrink" value="true"/>
                 <Property key="WordWrap" value="true"/>
                 <Property key="TextAlign" value="Left Top"/>
             </Widget>
@@ -80,18 +82,21 @@
             <Property key="Padding" value="8"/>
             <Property key="Spacing" value="8"/>
 
-            <Widget type="AutoSizedTextBox" skin="NormalText" position="8 8 284 18" align="Left Top" name="ClassName">
+            <Widget type="AutoSizedTextBox" skin="NormalText" position="8 8 0 18" align="Left Top HStretch" name="ClassName">
                 <Property key="TextAlign" value="Center"/>
+                <UserString key="HStretch" value="true"/>
             </Widget>
 
             <Widget type="AutoSizedEditBox" skin="SandText" position="8 30 430 18" align="Left Top" name="ClassDescription">
                 <Property key="MultiLine" value="true"/>
+                <Property key="Shrink" value="true"/>
                 <Property key="WordWrap" value="true"/>
                 <Property key="TextAlign" value="Left Top"/>
             </Widget>
 
-            <Widget type="AutoSizedEditBox" skin="SandText" position="8 52 284 18" align="Left Bottom" name="ClassSpecialisation">
+            <Widget type="AutoSizedTextBox" skin="SandText" position="8 52 0 18" align="Left Bottom" name="ClassSpecialisation">
                 <Property key="TextAlign" value="Center"/>
+                <UserString key="HStretch" value="true"/>
             </Widget>
         </Widget>
 
@@ -125,8 +130,10 @@
 
             <Widget type="AutoSizedEditBox" skin="SandText" position="44 8 392 0" align="Left Top" name="HealthDescription">
                 <Property key="MultiLine" value="true"/>
+                <Property key="Shrink" value="true"/>
                 <Property key="WordWrap" value="true"/>
                 <Property key="TextAlign" value="Left Top"/>
+                <UserString key="HStretch" value="true"/>
             </Widget>
         </Widget>
 
@@ -137,18 +144,22 @@
             <Property key="Spacing" value="8"/>
 
             <Widget type="HBox">
+                <UserString key="HStretch" value="true"/>
                 <Property key="Spacing" value="8"/>
                 <Widget type="ImageBox" skin="ImageBox" position="8 8 32 32" align="Left Top" name="AttributeImage"/>
 
-                <Widget type="AutoSizedEditBox" skin="NormalText" position="44 8 392 32" align="Left Top" name="AttributeName">
+                <Widget type="AutoSizedTextBox" skin="NormalText" position="44 8 0 32" align="Left Top" name="AttributeName">
                     <Property key="TextAlign" value="Left VCenter"/>
+                    <UserString key="HStretch" value="true"/>
                 </Widget>
             </Widget>
 
             <Widget type="AutoSizedEditBox" skin="SandText" position="8 44 436 248" align="Left Top" name="AttributeDescription">
                 <Property key="MultiLine" value="true"/>
+                <Property key="Shrink" value="true"/>
                 <Property key="WordWrap" value="true"/>
                 <Property key="TextAlign" value="Left Top"/>
+                <UserString key="HStretch" value="true"/>
             </Widget>
         </Widget>
 
@@ -179,19 +190,22 @@
 
             <Widget type="AutoSizedEditBox" skin="SandText" position="8 44 430 0" align="Left Top" name="SkillDescription">
                 <Property key="MultiLine" value="true"/>
+                <Property key="Shrink" value="true"/>
                 <Property key="WordWrap" value="true"/>
                 <Property key="TextAlign" value="Left Top"/>
                 <Property key="Spacing" value="28"/>
+                <UserString key="HStretch" value="true"/>
             </Widget>
 
             <Widget type="Widget" skin="" position="0 0 0 2" align="Left Top" />
 
-            <Widget type="AutoSizedTextBox" skin="SandText" position="8 48 444 18" align="Left Bottom" name="SkillMaxed">
+            <Widget type="AutoSizedTextBox" skin="SandText" position="8 48 200 18" align="Left Bottom" name="SkillMaxed">
                 <Property key="Caption" value="#{sSkillMaxReached}"/>
                 <Property key="TextAlign" value="Center"/>
+                <UserString key="HStretch" value="true"/>
             </Widget>
             <Widget type="VBox" name="SkillProgressVBox">
-                <Widget type="AutoSizedTextBox" skin="NormalText" position="8 48 444 18" align="Left Bottom">
+                <Widget type="AutoSizedTextBox" skin="NormalText" position="8 48 200 18" align="Left Bottom">
                     <Property key="Caption" value="#{sSkillProgress}"/>
                     <Property key="TextAlign" value="Center"/>
                 </Widget>