diff --git a/science/py-PyNE/Makefile b/science/py-PyNE/Makefile
index 8630a8f24b48..1eda9655b2d2 100644
--- a/science/py-PyNE/Makefile
+++ b/science/py-PyNE/Makefile
@@ -1,5 +1,6 @@
 PORTNAME=	PyNE
 DISTVERSION=	0.7.8
+PORTREVISION=	1
 CATEGORIES=	science # physics
 MASTER_SITES=	https://raw.githubusercontent.com/pyne/data/master/:decay \
 		https://raw.githubusercontent.com/pyne/data/master/:cram \
@@ -81,4 +82,7 @@ do-install:
 		${STAGEDIR}${PYTHON_SITELIBDIR}/pyne/*.so \
 		${STAGEDIR}${PYTHON_SITELIBDIR}/pyne/xs/models.so
 
+# CAVEAT: due to the failure to find MOAB-5.5.1 the file pyne/source_sampling.so isn't built, and is removed from plist
+#         - see https://github.com/pyne/pyne/issues/1537
+
 .include <bsd.port.mk>
diff --git a/science/py-PyNE/pkg-plist b/science/py-PyNE/pkg-plist
index c429e2018ed7..5e6baa1151b7 100644
--- a/science/py-PyNE/pkg-plist
+++ b/science/py-PyNE/pkg-plist
@@ -231,7 +231,6 @@ lib/libpyne.so
 %%PYTHON_SITELIBDIR%%/pyne/source.pxd
 %%PYTHON_SITELIBDIR%%/pyne/source.so
 %%PYTHON_SITELIBDIR%%/pyne/source_sampling.pxd
-%%PYTHON_SITELIBDIR%%/pyne/source_sampling.so
 %%PYTHON_SITELIBDIR%%/pyne/spatialsolver.py
 %%PYTHON_SITELIBDIR%%/pyne/spectanalysis.py
 %%PYTHON_SITELIBDIR%%/pyne/stlcontainers.pxd