diff --git a/security/fswatch/Makefile b/security/fswatch/Makefile
index c5120c8d6fc7..f396993f5b03 100644
--- a/security/fswatch/Makefile
+++ b/security/fswatch/Makefile
@@ -17,6 +17,7 @@ CONFIGURE_ARGS=	--prefix=${PREFIX} \
 		--enable-regex \
 		--enable-stflags
 GNU_CONFIGURE=	yes
+CFLAGS+=	-fcommon
 
 PORTSCOUT=	ignore:1