diff --git a/biology/libsbml/Makefile b/biology/libsbml/Makefile
index 11a3544135de..9df43949a9bf 100644
--- a/biology/libsbml/Makefile
+++ b/biology/libsbml/Makefile
@@ -24,7 +24,6 @@ WRKSRC=		${WRKDIR}/${PORTNAME}-${PORTVERSION}
 MAKE_JOBS_UNSAFE=	yes
 
 NO_STAGE=	yes
-.include <bsd.port.pre.mk>
 .include <bsd.port.options.mk>
 
 .if ${PORT_OPTIONS:MPYTHON}
@@ -57,4 +56,4 @@ post-install:
 		&& ${FIND} . -type d -exec ${MKDIR} ${EXAMPLESDIR}/\{} \; \
 		&& ${FIND} . -type f -exec ${INSTALL_DATA} \{} ${EXAMPLESDIR}/\{} \;
 .endif
-.include <bsd.port.post.mk>
+.include <bsd.port.mk>