1 files changed, 1 insertions, 1 deletions
diff --git a/include/cru/ui/ThemeManager.h b/include/cru/ui/ThemeManager.h
index f3f01313..72ade899 100644
--- a/include/cru/ui/ThemeManager.h
+++ b/include/cru/ui/ThemeManager.h
@@ -35,7 +35,7 @@ class CRU_UI_API ThemeManager : public Object {
       }
     }
     throw ThemeResourceKeyNotExistException(
-        Format(u"Theme resource key {} not exist.", key));
+        std::format("Theme resource key {} not exist.", key.ToUtf8()));
   }
 
   String GetResourceString(const String& key);