diff --git a/gnu/usr.bin/grep/Makefile b/gnu/usr.bin/grep/Makefile
index 092e523ebe68..bc6fbf4cb02f 100644
--- a/gnu/usr.bin/grep/Makefile
+++ b/gnu/usr.bin/grep/Makefile
@@ -1,6 +1,6 @@
 
 PROG=	grep
-SRCS=	dfa.c regex.o grep.o
+SRCS=	dfa.c regex.c grep.c
 CFLAGS+=-DSTDC_HEADERS=1 -DHAVE_UNISTD_H=1
 MLINKS= grep.1 egrep.1