diff --git a/usr.bin/getopt/Makefile b/usr.bin/getopt/Makefile
index 01dfa87e2935..06d4a2a62cd5 100644
--- a/usr.bin/getopt/Makefile
+++ b/usr.bin/getopt/Makefile
@@ -2,5 +2,6 @@
 #
 
 PROG = getopt
+WARNS?=	2
 
 .include <bsd.prog.mk>
diff --git a/usr.bin/getopt/getopt.c b/usr.bin/getopt/getopt.c
index c0d222125f10..830f63a3a34e 100644
--- a/usr.bin/getopt/getopt.c
+++ b/usr.bin/getopt/getopt.c
@@ -4,6 +4,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 
+int
 main(argc, argv)
 int argc;
 char *argv[];