treewide: use more lib.optionalString

1 files changed, 1 insertions, 1 deletions

diff --git a/nixos/modules/tasks/filesystems.nix b/nixos/modules/tasks/filesystems.nix
index 822f1593474e..326862f836a5 100644
--- a/nixos/modules/tasks/filesystems.nix
+++ b/nixos/modules/tasks/filesystems.nix
@@ -319,7 +319,7 @@ in
         message = let
           fs = head (filter notAutoResizable fileSystems);
         in
-          "Mountpoint '${fs.mountPoint}': 'autoResize = true' is not supported for 'fsType = \"${fs.fsType}\"':${if fs.fsType == "auto" then " fsType has to be explicitly set and" else ""} only the ext filesystems and f2fs support it.";
+          "Mountpoint '${fs.mountPoint}': 'autoResize = true' is not supported for 'fsType = \"${fs.fsType}\"':${optionalString (fs.fsType == "auto") " fsType has to be explicitly set and"} only the ext filesystems and f2fs support it.";
       }
     ];