diff --git a/scripts/cloudron-support b/scripts/cloudron-support
index 447cf3e6b..3e1ebe9b9 100755
--- a/scripts/cloudron-support
+++ b/scripts/cloudron-support
@@ -124,7 +124,7 @@ function disable_remote_support() {
     mkdir -p $(dirname "${keys_file}")       # .ssh does not exist sometimes
     touch "${keys_file}"                     # required for del below to work
     if grep -q "${cloudron_support_public_key}" "${keys_file}"; then
-        sed "/${cloudron_support_public_key}/d" "${keys_file}"
+        sed "/${cloudron_support_public_key}/d" -i "${keys_file}"
     fi
 
     echo "Done"