diff --git a/reactos/lib/winmm/Makefile b/reactos/lib/winmm/Makefile
index 44c13c1d1e5..20b428913c8 100644
--- a/reactos/lib/winmm/Makefile
+++ b/reactos/lib/winmm/Makefile
@@ -14,8 +14,8 @@ TARGET_SDKLIBS = ntdll.a kernel32.a
 
 TARGET_OBJECTS = \
 	dllmain.o \
-	misc\stubs.o
+	misc/stubs.o
 
 include $(PATH_TO_TOP)/rules.mak
 
-include $(TOOLS_PATH)/helper.mk
\ No newline at end of file
+include $(TOOLS_PATH)/helper.mk