diff --git a/scripts/convert_wan_to_diffusers.py b/scripts/convert_wan_to_diffusers.py
index f9b85bf54cc8..ef91e9e6c180 100644
--- a/scripts/convert_wan_to_diffusers.py
+++ b/scripts/convert_wan_to_diffusers.py
@@ -433,8 +433,9 @@ def get_args():
     vae = convert_vae()
     text_encoder = UMT5EncoderModel.from_pretrained("google/umt5-xxl")
     tokenizer = AutoTokenizer.from_pretrained("google/umt5-xxl")
+    flow_shift = 16.0 if "FLF2V" in args.model_type else 3.0
     scheduler = UniPCMultistepScheduler(
-        prediction_type="flow_prediction", use_flow_sigmas=True, num_train_timesteps=1000, flow_shift=3.0
+        prediction_type="flow_prediction", use_flow_sigmas=True, num_train_timesteps=1000, flow_shift=flow_shift
     )
 
     if "I2V" in args.model_type or "FLF2V" in args.model_type: