diff --git a/components/myguiplatform/myguicompat.h b/components/myguiplatform/myguicompat.h
deleted file mode 100644
index 04ca11a79f..0000000000
--- a/components/myguiplatform/myguicompat.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef OPENMW_COMPONENTS_MYGUIPLATFORM_MYGUICOMPAT_H
-#define OPENMW_COMPONENTS_MYGUIPLATFORM_MYGUICOMPAT_H
-
-#include <MyGUI_Prerequest.h>
-
-#if MYGUI_VERSION > MYGUI_DEFINE_VERSION(3, 4, 0)
-    #define OPENMW_MYGUI_CONST_GETTER_3_4_1 const
-#else
-    #define OPENMW_MYGUI_CONST_GETTER_3_4_1
-#endif
-
-#endif  // OPENMW_COMPONENTS_MYGUIPLATFORM_MYGUICOMPAT_H
diff --git a/components/myguiplatform/myguidatamanager.cpp b/components/myguiplatform/myguidatamanager.cpp
index 0310e996b9..fc5d2bf953 100644
--- a/components/myguiplatform/myguidatamanager.cpp
+++ b/components/myguiplatform/myguidatamanager.cpp
@@ -15,7 +15,7 @@ void DataManager::setResourcePath(const std::string &path)
     mResourcePath = path;
 }
 
-MyGUI::IDataStream *DataManager::getData(const std::string &name) OPENMW_MYGUI_CONST_GETTER_3_4_1
+MyGUI::IDataStream *DataManager::getData(const std::string &name) const
 {
     std::string fullpath = getDataPath(name);
     std::unique_ptr<boost::filesystem::ifstream> stream;
@@ -34,13 +34,13 @@ void DataManager::freeData(MyGUI::IDataStream *data)
     delete data;
 }
 
-bool DataManager::isDataExist(const std::string &name) OPENMW_MYGUI_CONST_GETTER_3_4_1
+bool DataManager::isDataExist(const std::string &name) const
 {
     std::string fullpath = mResourcePath + "/" + name;
     return boost::filesystem::exists(fullpath);
 }
 
-const MyGUI::VectorString &DataManager::getDataListNames(const std::string &pattern) OPENMW_MYGUI_CONST_GETTER_3_4_1
+const MyGUI::VectorString &DataManager::getDataListNames(const std::string &pattern) const
 {
     // TODO: pattern matching (unused?)
     static MyGUI::VectorString strings;
@@ -49,7 +49,7 @@ const MyGUI::VectorString &DataManager::getDataListNames(const std::string &patt
     return strings;
 }
 
-const std::string &DataManager::getDataPath(const std::string &name) OPENMW_MYGUI_CONST_GETTER_3_4_1
+const std::string &DataManager::getDataPath(const std::string &name) const
 {
     static std::string result;
     result.clear();
diff --git a/components/myguiplatform/myguidatamanager.hpp b/components/myguiplatform/myguidatamanager.hpp
index ca2f94899c..da24763d7b 100644
--- a/components/myguiplatform/myguidatamanager.hpp
+++ b/components/myguiplatform/myguidatamanager.hpp
@@ -3,8 +3,6 @@
 
 #include <MyGUI_DataManager.h>
 
-#include "myguicompat.h"
-
 namespace osgMyGUI
 {
 
@@ -19,7 +17,7 @@ public:
     /** Get data stream from specified resource name.
         @param _name Resource name (usually file name).
     */
-    MyGUI::IDataStream* getData(const std::string& _name) OPENMW_MYGUI_CONST_GETTER_3_4_1 override;
+    MyGUI::IDataStream* getData(const std::string& _name) const override;
 
     /** Free data stream.
         @param _data Data stream.
@@ -29,18 +27,18 @@ public:
     /** Is data with specified name exist.
         @param _name Resource name.
     */
-    bool isDataExist(const std::string& _name) OPENMW_MYGUI_CONST_GETTER_3_4_1 override;
+    bool isDataExist(const std::string& _name) const override;
 
     /** Get all data names with names that matches pattern.
         @param _pattern Pattern to match (for example "*.layout").
     */
-    const MyGUI::VectorString& getDataListNames(const std::string& _pattern) OPENMW_MYGUI_CONST_GETTER_3_4_1 override;
+    const MyGUI::VectorString& getDataListNames(const std::string& _pattern) const override;
 
     /** Get full path to data.
         @param _name Resource name.
         @return Return full path to specified data.
     */
-    const std::string& getDataPath(const std::string& _name) OPENMW_MYGUI_CONST_GETTER_3_4_1 override;
+    const std::string& getDataPath(const std::string& _name) const override;
 
 private:
     std::string mResourcePath;
diff --git a/components/myguiplatform/myguirendermanager.cpp b/components/myguiplatform/myguirendermanager.cpp
index 7fb82bbce5..b8ca06a181 100644
--- a/components/myguiplatform/myguirendermanager.cpp
+++ b/components/myguiplatform/myguirendermanager.cpp
@@ -15,7 +15,6 @@
 #include <components/shader/shadermanager.hpp>
 #include <components/sceneutil/nodecallback.hpp>
 
-#include "myguicompat.h"
 #include "myguitexture.hpp"
 
 #define MYGUI_PLATFORM_LOG_SECTION "Platform"
@@ -276,7 +275,7 @@ public:
     osg::VertexBufferObject* getVertexBuffer();
 
     void setVertexCount(size_t count) override;
-    size_t getVertexCount() OPENMW_MYGUI_CONST_GETTER_3_4_1 override;
+    size_t getVertexCount() const override;
 
     MyGUI::Vertex *lock() override;
     void unlock() override;
@@ -303,7 +302,7 @@ void OSGVertexBuffer::setVertexCount(size_t count)
     mNeedVertexCount = count;
 }
 
-size_t OSGVertexBuffer::getVertexCount() OPENMW_MYGUI_CONST_GETTER_3_4_1
+size_t OSGVertexBuffer::getVertexCount() const
 {
     return mNeedVertexCount;
 }
diff --git a/components/myguiplatform/myguirendermanager.hpp b/components/myguiplatform/myguirendermanager.hpp
index bfb3da605a..0d1ad4fb41 100644
--- a/components/myguiplatform/myguirendermanager.hpp
+++ b/components/myguiplatform/myguirendermanager.hpp
@@ -5,8 +5,6 @@
 
 #include <osg/ref_ptr>
 
-#include "myguicompat.h"
-
 namespace Resource
 {
     class ImageManager;
@@ -79,7 +77,7 @@ public:
     const MyGUI::IntSize& getViewSize() const override { return mViewSize; }
 
     /** @see RenderManager::getVertexFormat */
-    MyGUI::VertexColourType getVertexFormat() OPENMW_MYGUI_CONST_GETTER_3_4_1 override
+    MyGUI::VertexColourType getVertexFormat() const override
     { return mVertexFormat; }
 
     /** @see RenderManager::isFormatSupported */
@@ -112,7 +110,7 @@ public:
     void setInjectState(osg::StateSet* stateSet);
 
     /** @see IRenderTarget::getInfo */
-    const MyGUI::RenderTargetInfo& getInfo() OPENMW_MYGUI_CONST_GETTER_3_4_1 override { return mInfo; }
+    const MyGUI::RenderTargetInfo& getInfo() const override { return mInfo; }
 
     bool checkTexture(MyGUI::ITexture* _texture);
 
diff --git a/components/myguiplatform/scalinglayer.cpp b/components/myguiplatform/scalinglayer.cpp
index 51c148253f..75a149c810 100644
--- a/components/myguiplatform/scalinglayer.cpp
+++ b/components/myguiplatform/scalinglayer.cpp
@@ -3,8 +3,6 @@
 #include <MyGUI_RenderManager.h>
 #include <algorithm>
 
-#include "myguicompat.h"
-
 namespace osgMyGUI
 {
 
@@ -39,7 +37,7 @@ namespace osgMyGUI
             mTarget->doRender(_buffer, _texture, _count);
         }
 
-        const MyGUI::RenderTargetInfo& getInfo() OPENMW_MYGUI_CONST_GETTER_3_4_1 override
+        const MyGUI::RenderTargetInfo& getInfo() const override
         {
             mInfo = mTarget->getInfo();
             mInfo.hOffset = mHOffset;