diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6fac03a04..83ae69f41 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -180,7 +180,7 @@ target_compile_definitions(vllm_flash_attn_c PRIVATE
         FLASHATTENTION_DISABLE_DROPOUT
         # FLASHATTENTION_DISABLE_ALIBI
         # FLASHATTENTION_DISABLE_SOFTCAP
-        FLASHATTENTION_DISABLE_UNEVEN_K
+        # FLASHATTENTION_DISABLE_UNEVEN_K
         # FLASHATTENTION_DISABLE_LOCAL
 )