diff --git a/bin/chflags/Makefile b/bin/chflags/Makefile
index 4b48e98aee9..df1a7dc0aee 100644
--- a/bin/chflags/Makefile
+++ b/bin/chflags/Makefile
@@ -5,7 +5,7 @@ BINDIR=	/bin
 NOSHARED?=yes
 
 PROG=	chflags
-CFLAGS+=-Wall
 SRCS=	chflags.c
 
+WARNS=	2
 .include <bsd.prog.mk>
diff --git a/bin/chflags/chflags.c b/bin/chflags/chflags.c
index 3ff36efc91b..40c5b3f432b 100644
--- a/bin/chflags/chflags.c
+++ b/bin/chflags/chflags.c
@@ -56,6 +56,7 @@ static const char rcsid[] =
 #include <string.h>
 #include <unistd.h>
 
+int	main __P((int, char *[]));
 void	usage __P((void));
 
 int
@@ -163,7 +164,7 @@ main(argc, argv)
 		} else {
 			p->fts_statp->st_flags |= set;
 			p->fts_statp->st_flags &= clear;
-			if (!chflags(p->fts_accpath, p->fts_statp->st_flags))
+			if (!chflags(p->fts_accpath, (u_long)p->fts_statp->st_flags))
 				continue;
 		}
 		warn("%s", p->fts_path);
diff --git a/usr.bin/chflags/Makefile b/usr.bin/chflags/Makefile
index 4b48e98aee9..df1a7dc0aee 100644
--- a/usr.bin/chflags/Makefile
+++ b/usr.bin/chflags/Makefile
@@ -5,7 +5,7 @@ BINDIR=	/bin
 NOSHARED?=yes
 
 PROG=	chflags
-CFLAGS+=-Wall
 SRCS=	chflags.c
 
+WARNS=	2
 .include <bsd.prog.mk>
diff --git a/usr.bin/chflags/chflags.c b/usr.bin/chflags/chflags.c
index 3ff36efc91b..40c5b3f432b 100644
--- a/usr.bin/chflags/chflags.c
+++ b/usr.bin/chflags/chflags.c
@@ -56,6 +56,7 @@ static const char rcsid[] =
 #include <string.h>
 #include <unistd.h>
 
+int	main __P((int, char *[]));
 void	usage __P((void));
 
 int
@@ -163,7 +164,7 @@ main(argc, argv)
 		} else {
 			p->fts_statp->st_flags |= set;
 			p->fts_statp->st_flags &= clear;
-			if (!chflags(p->fts_accpath, p->fts_statp->st_flags))
+			if (!chflags(p->fts_accpath, (u_long)p->fts_statp->st_flags))
 				continue;
 		}
 		warn("%s", p->fts_path);