diff --git a/app/services/facefusion_bridge.py b/app/services/facefusion_bridge.py
index a3ae0db..40a6359 100644
--- a/app/services/facefusion_bridge.py
+++ b/app/services/facefusion_bridge.py
@@ -254,7 +254,7 @@ def _build_defaults() -> Dict[str, Any]:
         'step_index': None,
         # processor-specific defaults
         'face_swapper_model': 'hyperswap_1a_256',
-        'face_swapper_pixel_boost': None,
+        'face_swapper_pixel_boost': '256x256',
         'face_swapper_weight': 0.5,
         'face_enhancer_model': 'gfpgan_1.4',
         'face_enhancer_blend': 80,