diff --git a/TextEditor.cpp b/TextEditor.cpp
index 1cc3e108..af14cc11 100644
--- a/TextEditor.cpp
+++ b/TextEditor.cpp
@@ -30,6 +30,8 @@ TextEditor::~TextEditor()
 {
 }
 
+int TextEditor::GetLineCount() const { return mLines.size(); }
+
 void TextEditor::SetPalette(PaletteId aValue)
 {
 	mPaletteId = aValue;
diff --git a/TextEditor.h b/TextEditor.h
index 19ad61bd..0f8c074d 100644
--- a/TextEditor.h
+++ b/TextEditor.h
@@ -43,7 +43,7 @@ class IMGUI_API TextEditor
 	inline bool IsShowLineNumbersEnabled() const { return mShowLineNumbers; }
 	inline void SetShortTabsEnabled(bool aValue) { mShortTabs = aValue; }
 	inline bool IsShortTabsEnabled() const { return mShortTabs; }
-	inline int GetLineCount() const { return mLines.size(); }
+	int GetLineCount() const;
 	void SetPalette(PaletteId aValue);
 	PaletteId GetPalette() const { return mPaletteId; }
 	void SetLanguageDefinition(LanguageDefinitionId aValue);