diff --git a/misc/dynomite/Makefile b/misc/dynomite/Makefile
index 72fe3a066c47d..cf0c9553e93d0 100644
--- a/misc/dynomite/Makefile
+++ b/misc/dynomite/Makefile
@@ -29,4 +29,10 @@ PLIST_FILES=	bin/dynomite-hash-tool \
 		sbin/dynomite \
 		sbin/dynomite-test
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1400079
+CFLAGS+=       -Wno-error=int-conversion
+.endif
+
+.include <bsd.port.post.mk>