diff --git a/audio/rhythmbox-devel/Makefile b/audio/rhythmbox-devel/Makefile
index 86771e3277af..6a8176530ee5 100644
--- a/audio/rhythmbox-devel/Makefile
+++ b/audio/rhythmbox-devel/Makefile
@@ -42,6 +42,10 @@ OPTIONS=	IPOD "Enable iPod support" off \
 
 .include <bsd.port.pre.mk>
 
+.if ${OSVERSION} < 500000
+BROKEN=	"Does not build on 4.X"
+.endif
+
 .ifdef (WITH_IPOD)
 CONFIGURE_ARGS+=	--enable-ipod
 .endif
diff --git a/audio/rhythmbox/Makefile b/audio/rhythmbox/Makefile
index 86771e3277af..6a8176530ee5 100644
--- a/audio/rhythmbox/Makefile
+++ b/audio/rhythmbox/Makefile
@@ -42,6 +42,10 @@ OPTIONS=	IPOD "Enable iPod support" off \
 
 .include <bsd.port.pre.mk>
 
+.if ${OSVERSION} < 500000
+BROKEN=	"Does not build on 4.X"
+.endif
+
 .ifdef (WITH_IPOD)
 CONFIGURE_ARGS+=	--enable-ipod
 .endif
diff --git a/cad/oregano/Makefile b/cad/oregano/Makefile
index 4423ab53bdbd..9c39a56ac77d 100644
--- a/cad/oregano/Makefile
+++ b/cad/oregano/Makefile
@@ -27,6 +27,10 @@ INSTALLS_OMF=	yes
 
 .include <bsd.port.pre.mk>
 
+.if ${OSVERSION} < 500000
+BROKEN=	"Does not build on 4.X"
+.endif
+
 post-patch:
 	@${REINPLACE_CMD} -e 's|src/main\.c|${PORTNAME}|g' ${WRKSRC}/configure