diff --git a/buildsystem/spack/binary_mirror.sh b/buildsystem/spack/binary_mirror.sh
index 7bccc9b9..4c5fcc60 100755
--- a/buildsystem/spack/binary_mirror.sh
+++ b/buildsystem/spack/binary_mirror.sh
@@ -11,6 +11,6 @@ spack mirror list
 
 res=$?
 
-chmod -R ugo+wrx $SPACK_MIRROR &
+chmod -R ugo+wrx $SPACK_MIRROR/* &
 
 exit $res