diff --git a/src/PlanViewer.App/Controls/QuerySessionControl.axaml.cs b/src/PlanViewer.App/Controls/QuerySessionControl.axaml.cs
index de27e6b..0c331f0 100644
--- a/src/PlanViewer.App/Controls/QuerySessionControl.axaml.cs
+++ b/src/PlanViewer.App/Controls/QuerySessionControl.axaml.cs
@@ -2056,7 +2056,7 @@ private async void Format_Click(object? sender, RoutedEventArgs e)
                         }
                     }
                 };
-                dialog.ShowDialog(GetParentWindow());
+                await dialog.ShowDialog(GetParentWindow());
                 SetStatus($"Format failed: {errors.Count} error(s)");
                 return;
             }