diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 06d6f76cce15540fb7ddcc27ec35cde33656ab36..97a5ca3f0755a32e63a74cbb25f3e2f1f7013096 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -333,10 +333,10 @@ BOOL				gDisconnected = FALSE;
 // used to restore texture state after a mode switch
 LLFrameTimer	gRestoreGLTimer;
 BOOL			gRestoreGL = FALSE;
-BOOL			gUseWireframe = FALSE;
+bool			gUseWireframe = FALSE;
 
 //use for remember deferred mode in wireframe switch
-BOOL			gInitialDeferredModeForWireframe = FALSE;
+bool			gInitialDeferredModeForWireframe = FALSE;
 
 // VFS globals - see llappviewer.h
 LLVFS* gStaticVFS = NULL;
diff --git a/indra/newview/llappviewer.h b/indra/newview/llappviewer.h
index 948d316009aebda5c65519365aeecab072b8b8dd..d4875cc7c140d5746aea5ecc40330d32c0946596 100644
--- a/indra/newview/llappviewer.h
+++ b/indra/newview/llappviewer.h
@@ -391,8 +391,8 @@ extern BOOL		gDisconnected;
 
 extern LLFrameTimer	gRestoreGLTimer;
 extern BOOL			gRestoreGL;
-extern BOOL		gUseWireframe;
-extern BOOL		gInitialDeferredModeForWireframe;
+extern bool		gUseWireframe;
+extern bool		gInitialDeferredModeForWireframe;
 
 // VFS globals - gVFS is for general use
 // gStaticVFS is read-only and is shipped w/ the viewer