diff --git a/bin/domainname/Makefile b/bin/domainname/Makefile
index 724bd06f6a39..2c7669cfeca6 100644
--- a/bin/domainname/Makefile
+++ b/bin/domainname/Makefile
@@ -2,4 +2,6 @@
 
 PROG=	domainname
 
+WARNS=	2
+
 .include <bsd.prog.mk>
diff --git a/bin/domainname/domainname.c b/bin/domainname/domainname.c
index d0c989c39fdd..32a86cab6883 100644
--- a/bin/domainname/domainname.c
+++ b/bin/domainname/domainname.c
@@ -53,6 +53,7 @@ static const char rcsid[] =
 #include <string.h>
 #include <unistd.h>
 
+int main __P((int, char *[]));
 void usage __P((void));
 
 int
@@ -75,10 +76,10 @@ main(argc,argv)
 		usage();
 
 	if (*argv) {
-		if (setdomainname(*argv, strlen(*argv)))
+		if (setdomainname(*argv, (int)strlen(*argv)))
 			err(1, "setdomainname");
 	} else {
-		if (getdomainname(domainname, sizeof(domainname)))
+		if (getdomainname(domainname, (int)sizeof(domainname)))
 			err(1, "getdomainname");
 		(void)printf("%s\n", domainname);
 	}
diff --git a/bin/echo/Makefile b/bin/echo/Makefile
index d00d4679d7ac..b62bd423041c 100644
--- a/bin/echo/Makefile
+++ b/bin/echo/Makefile
@@ -3,4 +3,6 @@
 
 PROG=	echo
 
+WARNS=	2
+
 .include <bsd.prog.mk>
diff --git a/bin/echo/echo.c b/bin/echo/echo.c
index edab483ddbbc..71fecd4ca7da 100644
--- a/bin/echo/echo.c
+++ b/bin/echo/echo.c
@@ -49,9 +49,11 @@ static const char rcsid[] =
 #include <stdlib.h>
 #include <string.h>
 
+int main __P((int, char *[]));
+
 int
 main(argc, argv)
-	int argc;
+	int argc __unused;
 	char *argv[];
 {
 	int nflag;