diff --git a/assemble_image.sh b/assemble_image.sh
index ae18e31e8a6e3cf848daf390948ad87177be0678..54fd5f7b96e4ec931a03ef20a3d397199d08796c 100755
--- a/assemble_image.sh
+++ b/assemble_image.sh
@@ -129,7 +129,7 @@ create_offline_repo
 
 install_custom_calamares() {
   local CACHE="${XDG_CACHE_HOME:-"$HOME/.cache"}/lip-build/calamares-build"
-  if [ "$REBUILD_CALAMARES" -ne 0 ] || ! ls "$CACHE"/calamares*.pkg.tar.* > /dev/null 2&>1
+  if [ "$REBUILD_CALAMARES" -ne 0 ] || ! ls "$CACHE"/calamares*.pkg.tar.* >/dev/null 2>/dev/null
   then
     local BUILD_DIR="$WORKSPACE/calamares-build"
     mkdir -p "$BUILD_DIR"