diff --git a/Make.defs b/Make.defs
index 6c4e3fd8b..415ea09fc 100644
--- a/Make.defs
+++ b/Make.defs
@@ -77,8 +77,6 @@ endif
 
 ifeq ($(CONFIG_WINDOWS_NATIVE),y)
   MKKCONFIG = $(APPDIR)\tools\mkkconfig.bat
-else ifeq ($(CONFIG_WINDOWS_MSYS),y)
-  MKKCONFIG = $(APPDIR)/tools/mkkconfig.sh
 else
   MKKCONFIG = $(APPDIR)/tools/mkkconfig.sh
 endif