diff --git a/apps/openmw/mwgui/settingswindow.cpp b/apps/openmw/mwgui/settingswindow.cpp
index ed0bf72771..c8c97d1796 100644
--- a/apps/openmw/mwgui/settingswindow.cpp
+++ b/apps/openmw/mwgui/settingswindow.cpp
@@ -1,5 +1,4 @@
 #include "settingswindow.hpp"
-#include "weightedsearch.hpp"
 
 #include <array>
 #include <iomanip>
@@ -43,6 +42,7 @@
 #include "../mwlua/luamanagerimp.hpp"
 
 #include "confirmationdialog.hpp"
+#include "weightedsearch.hpp"
 
 namespace
 {
@@ -942,28 +942,6 @@ namespace MWGui
         mControlsBox->setVisibleVScroll(true);
     }
 
-    std::vector<std::string> generatePatternArray(const MyGUI::UString& inputString)
-    {
-        if (inputString.empty() || inputString.find_first_not_of(" ") == std::string::npos)
-            return std::vector<std::string>();
-        std::string inputStringLowerCase = Misc::StringUtils::lowerCase(inputString);
-        std::istringstream stringStream(inputStringLowerCase);
-        return { std::istream_iterator<std::string>(stringStream), std::istream_iterator<std::string>() };
-    }
-    size_t weightedSearch(const std::string& corpus, const std::vector<std::string>& patternArray)
-    {
-        if (patternArray.empty())
-            return 1;
-
-        std::string corpusLowerCase = Misc::StringUtils::lowerCase(corpus);
-
-        size_t numberOfMatches = 0;
-        for (const std::string& word : patternArray)
-            numberOfMatches += corpusLowerCase.find(word) != std::string::npos ? 1 : 0;
-
-        return numberOfMatches;
-    }
-
     void SettingsWindow::renderScriptSettings()
     {
         mScriptAdapter->detach();
diff --git a/apps/openmw/mwgui/weightedsearch.hpp b/apps/openmw/mwgui/weightedsearch.hpp
index 5db23f1e0b..2f88f474d7 100644
--- a/apps/openmw/mwgui/weightedsearch.hpp
+++ b/apps/openmw/mwgui/weightedsearch.hpp
@@ -1,15 +1,39 @@
 #ifndef MWGUI_WEIGHTEDSEARCH_H
 #define MWGUI_WEIGHTEDSEARCH_H
 
+#include <cstddef>
+#include <iterator>
+#include <sstream>
 #include <string>
 #include <vector>
 
 #include <MyGUI_UString.h>
 
+#include <components/misc/strings/lower.hpp>
+
 namespace MWGui
 {
-    std::vector<std::string> generatePatternArray(const MyGUI::UString& inputString);
-    std::size_t weightedSearch(const std::string& corpus, const std::vector<std::string>& patternArray);
+    std::vector<std::string> generatePatternArray(const MyGUI::UString& inputString)
+    {
+        if (inputString.empty() || inputString.find_first_not_of(" ") == std::string::npos)
+            return std::vector<std::string>();
+        std::string inputStringLowerCase = Misc::StringUtils::lowerCase(inputString);
+        std::istringstream stringStream(inputStringLowerCase);
+        return { std::istream_iterator<std::string>(stringStream), std::istream_iterator<std::string>() };
+    }
+    std::size_t weightedSearch(const std::string& corpus, const std::vector<std::string>& patternArray)
+    {
+        if (patternArray.empty())
+            return 1;
+
+        std::string corpusLowerCase = Misc::StringUtils::lowerCase(corpus);
+
+        std::size_t numberOfMatches = 0;
+        for (const std::string& word : patternArray)
+            numberOfMatches += corpusLowerCase.find(word) != std::string::npos ? 1 : 0;
+
+        return numberOfMatches;
+    }
 }
 
 #endif