diff --git a/modules/backup.nix b/modules/backup.nix
index 789d00e..198226c 100644
--- a/modules/backup.nix
+++ b/modules/backup.nix
@@ -19,7 +19,7 @@ let
         du -sh ${builtins.concatStringsSep " " backupPathsMedium}
         echo "Checking storage space (full)..."
         du -sh ${builtins.concatStringsSep " " backupPathsFull}
-      ''
+      '';
     };
 in
 {