diff --git a/BaseTools/Bin/Win32/build.exe b/BaseTools/Bin/Win32/build.exe
index 75686f1209..92a0e8cf0f 100644
Binary files a/BaseTools/Bin/Win32/build.exe and b/BaseTools/Bin/Win32/build.exe differ
diff --git a/BaseTools/Conf/build_rule.template b/BaseTools/Conf/build_rule.template
index 44a3196b82..1faf846e38 100644
--- a/BaseTools/Conf/build_rule.template
+++ b/BaseTools/Conf/build_rule.template
@@ -110,7 +110,7 @@ ${END}	"$(PP)" $(PP_FLAGS) $(INC) $(WORKSPACE)${sep}${fpath} > $(@D)${sep}${fbas
 $(OUTPUT_DIR)${sep}${fdir}${sep}${fbase}.obj : $(COMMON_DEPS)
 ${BEGIN}$(OUTPUT_DIR)${sep}${fdir}${sep}${fbase}.obj : $(WORKSPACE)${sep}${fdep}
 ${END}	"$(APP)" $(APP_FLAGS) $(INC) $(WORKSPACE)${sep}${fpath} > $(@D)${sep}${fbase}.i
-	"$(ASM)" $(ASM_FLAGS) /Fo$@ $(@D)${sep}${fbase}.i
+	"$(ASM)" $(ASM_FLAGS) -o$@ $(@D)${sep}${fbase}.i
 ''',
 
 "Visual-Form-Representation" : '''\