diff --git a/pkgmngt/packInstall.sh.porg b/pkgmngt/packInstall.sh.porg
index b9d3f32..7aea2c0 100644
--- a/pkgmngt/packInstall.sh.porg
+++ b/pkgmngt/packInstall.sh.porg
@@ -121,7 +121,7 @@ PACKAGE=${PACKAGE,,}
 # name is not normalized, several hacks are necessary (now in function
 # extract_version)...
 VERSION=$(extract_version $PCKGVRS)
-porg -+ -lp ${PACKAGE}-${VERSION} sh -e << PORG_EOF
+porg -+ -lp ${PACKAGE}-${VERSION} -- sh -e << PORG_EOF
 $*
 PORG_EOF
 }