diff --git a/usr.bin/mandoc/Makefile b/usr.bin/mandoc/Makefile
index bd5e50e9857e..ec35ec21d0f8 100644
--- a/usr.bin/mandoc/Makefile
+++ b/usr.bin/mandoc/Makefile
@@ -97,6 +97,8 @@ SRCS=		${LIB_SRCS} \
 WARNS?=	3
 CFLAGS+= -DHAVE_CONFIG_H \
 	 -I${SRCTOP}/lib/libopenbsd/
+# This can be removed after swtiching to newer gcc
+CFLAGS.gcc+=	-Wno-format
 LIBADD=	openbsd z
 
 .include <bsd.prog.mk>