diff --git a/Makefile b/Makefile
index 1811a9e..8d3299a 100644
--- a/Makefile
+++ b/Makefile
@@ -1672,6 +1672,8 @@
 XDIFF_OBJS = xdiff/xdiffi.o xdiff/xprepare.o xdiff/xutils.o xdiff/xemit.o \
 	xdiff/xmerge.o xdiff/xpatience.o
 
+.SUFFIXES:
+
 %.o: %.c GIT-CFLAGS
 	$(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) $<
 %.s: %.c GIT-CFLAGS FORCE