diff --git a/security/medusa/Makefile b/security/medusa/Makefile
index 5c477ce3f360..970339ca28bf 100644
--- a/security/medusa/Makefile
+++ b/security/medusa/Makefile
@@ -18,6 +18,7 @@ USES=	ssl
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--enable-module-ncp=no --enable-module-afp=no
+CFLAGS+=	-fcommon
 
 OPTIONS_DEFINE=	SVN PGSQL DOCS
 OPTIONS_SUB=	yes