diff --git a/scripts/remove b/scripts/remove
index 4bc54c7..f823c1b 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 app=$YNH_APP_INSTANCE_NAME
-
+set -u
 # Source app helpers
 source /usr/share/yunohost/helpers