diff --git a/backupbot.py b/backupbot.py
index c6a4eaa..8b56c40 100755
--- a/backupbot.py
+++ b/backupbot.py
@@ -259,9 +259,9 @@ def list_files(snapshot, path):
         output = restic.internal.command_executor.execute(cmd)
     except ResticFailedError as error:
         if 'no snapshot found' in str(error):
-            err_msg = f'There is no snapshot {snapshot}'
+            err_msg = f'There is no snapshot "{snapshot}"'
             if SERVICE:
-                err_msg += f'for the app {SERVICE}'
+                err_msg += f' for the app "{SERVICE}"'
             logger.error(err_msg)
             exit(1)
         else: