diff --git a/BaseTools/Conf/build_rule.template b/BaseTools/Conf/build_rule.template
index 4c1a795944..6c6286478e 100644
--- a/BaseTools/Conf/build_rule.template
+++ b/BaseTools/Conf/build_rule.template
@@ -215,7 +215,7 @@
 
     <InputFile.GCC>
         ?.dll
-        $(MODULE_BUILD_DIR)/GnuMakefile
+        $(MODULE_BUILD_DIR)\Makefile
 
     <OutputFile>
         $(DEBUG_DIR)(+)$(MODULE_NAME).efi