diff --git a/textproc/ocaml-pxp/Makefile b/textproc/ocaml-pxp/Makefile
index 4696d6dab4b4..0ecf7b9b8309 100644
--- a/textproc/ocaml-pxp/Makefile
+++ b/textproc/ocaml-pxp/Makefile
@@ -23,6 +23,12 @@ USE_GMAKE=	yes
 
 HAS_CONFIGURE=	yes
 
+USE_REINPLACE=  yes
+
 ALL_TARGET=	all opt
 
+# to avoid a conflict with PACKAGES in bsd.port.mk
+post-extract:
+	${FIND} ${WRKSRC} -name "Makefile*" | ${XARGS} ${REINPLACE_CMD} -e 's/PACKAGES/PXP_PACKAGES/'
+
 .include <bsd.port.mk>