diff --git a/portproton/lure.sh b/portproton/lure.sh
index 1f32b20..4d76a84 100644
--- a/portproton/lure.sh
+++ b/portproton/lure.sh
@@ -25,6 +25,7 @@ checksums=('SKIP'
 
 prepare() {
 cd "${srcdir}"
+sudo chmode +x ./postinstall.sh
 }
 
 package() {