diff --git a/Mathomir/Toolbox.cpp b/Mathomir/Toolbox.cpp
index b9c3f38..9cb09f3 100644
--- a/Mathomir/Toolbox.cpp
+++ b/Mathomir/Toolbox.cpp
@@ -4080,7 +4080,7 @@ void CToolbox::OnMouseMove(UINT nFlags, CPoint point)
 		int langid=6000;
 		char *text="";
 		char *easycast="";
-		short key;
+		short key=-1;
 		char *command="";
 		char buff[32];
 		strcpy(buff,"");