diff --git a/romimages/RON_WINFAST6300/Makefile b/romimages/RON_WINFAST6300/Makefile
index 6488988b17..f727b18f14 100644
--- a/romimages/RON_WINFAST6300/Makefile
+++ b/romimages/RON_WINFAST6300/Makefile
@@ -66,8 +66,8 @@ linuxbios: $(OBJECTS) vmlinux.bin.gz
 # .inc files (relative to $TOP/src) in crt0.S. 
 # So, for example, earlymtrr.inc is included as cpu/p6/earlymtrr.inc
 # To make this work, add the extra -I $(TOP)/src here. 
-crt0.s: crt0.S 
-	$(CCASM) -I $(TOP)/src -E crt0.S > crt0.s
+crt0.s: $(TOP)/src/mainboard/leadtek/winfast6300/crt0.S 
+	$(CCASM) -I $(TOP)/src -E $< > crt0.s
 
 crt0.o : crt0.s
 	$(CCASM) -c crt0.s