diff --git a/indra/llwindow/llwindowmacosx.cpp b/indra/llwindow/llwindowmacosx.cpp
index 94e7de333f..98ec86305b 100644
--- a/indra/llwindow/llwindowmacosx.cpp
+++ b/indra/llwindow/llwindowmacosx.cpp
@@ -1656,7 +1656,7 @@ ECursorType LLWindowMacOSX::getCursor() const
 
 // <FS:LO> Legacy cursor setting from main program
 //void LLWindowMacOSX::initCursors()
-void LLWindowMacOSX::initCursors(BOOL useLegacyCursors)
+void LLWindowMacOSX::initCursors(bool useLegacyCursors)
 {
     initPixmapCursor(UI_CURSOR_NO, 8, 8);
     initPixmapCursor(UI_CURSOR_WORKING, 1, 1);
diff --git a/indra/llwindow/llwindowmacosx.h b/indra/llwindow/llwindowmacosx.h
index f66b66db1b..e3589603bc 100644
--- a/indra/llwindow/llwindowmacosx.h
+++ b/indra/llwindow/llwindowmacosx.h
@@ -159,7 +159,7 @@ protected:
         ~LLWindowMacOSX();
 
     //void  initCursors();
-    void    initCursors(BOOL useLegacyCursors); // <FS:LO> Legacy cursor setting from main program
+    void    initCursors(bool useLegacyCursors); // <FS:LO> Legacy cursor setting from main program
     bool    isValid() override;
     void    moveWindow(const LLCoordScreen& position,const LLCoordScreen& size);