diff --git a/xformers/ops/fmha/dispatch.py b/xformers/ops/fmha/dispatch.py
index 642f535c1c..8c0086e09d 100644
--- a/xformers/ops/fmha/dispatch.py
+++ b/xformers/ops/fmha/dispatch.py
@@ -16,7 +16,7 @@
 T = TypeVar("T", Type[AttentionFwOpBase], Type[AttentionBwOpBase])
 
 
-_USE_FLASH_ATTENTION_3 = False
+_USE_FLASH_ATTENTION_3 = True
 
 
 def _set_use_fa3(use_flash_attention3: bool) -> None: