diff --git a/wanvideo/modules/model.py b/wanvideo/modules/model.py
index ab40673..5afdee9 100644
--- a/wanvideo/modules/model.py
+++ b/wanvideo/modules/model.py
@@ -153,7 +153,7 @@ def sinusoidal_embedding_1d(dim, position):
     # preprocess
     assert dim % 2 == 0
     half = dim // 2
-    position = position.type(torch.float64)
+    position = position.type(torch.float32)
 
     # calculation
     sinusoid = torch.outer(