diff --git a/docker/rocm.Dockerfile b/docker/rocm.Dockerfile
index 795fc8285..cb01a75c8 100644
--- a/docker/rocm.Dockerfile
+++ b/docker/rocm.Dockerfile
@@ -37,7 +37,7 @@ ENV BUILD_TRITON="0"
 ENV BUILD_LLVM="0"
 ENV BUILD_AITER_ALL="1"
 ENV BUILD_MOONCAKE="1"
-ENV AITER_COMMIT_DEFAULT="7d604afe5fa7efba63c0dce323b95d9daf2db112"
+ENV AITER_COMMIT_DEFAULT="9127c94a18e4398e1eba91f6639e910f0994ad02"
 
 # ===============================
 # Base image 942 with rocm720 and args
@@ -47,7 +47,7 @@ ENV BUILD_TRITON="1"
 ENV BUILD_LLVM="0"
 ENV BUILD_AITER_ALL="1"
 ENV BUILD_MOONCAKE="1"
-ENV AITER_COMMIT_DEFAULT="7d604afe5fa7efba63c0dce323b95d9daf2db112"
+ENV AITER_COMMIT_DEFAULT="9127c94a18e4398e1eba91f6639e910f0994ad02"
 
 # ===============================
 # Base image 950 and args
@@ -57,7 +57,7 @@ ENV BUILD_TRITON="0"
 ENV BUILD_LLVM="0"
 ENV BUILD_AITER_ALL="1"
 ENV BUILD_MOONCAKE="1"
-ENV AITER_COMMIT_DEFAULT="7d604afe5fa7efba63c0dce323b95d9daf2db112"
+ENV AITER_COMMIT_DEFAULT="9127c94a18e4398e1eba91f6639e910f0994ad02"
 
 # ===============================
 # Base image 950 with rocm720 and args
@@ -67,7 +67,7 @@ ENV BUILD_TRITON="1"
 ENV BUILD_LLVM="0"
 ENV BUILD_AITER_ALL="1"
 ENV BUILD_MOONCAKE="1"
-ENV AITER_COMMIT_DEFAULT="7d604afe5fa7efba63c0dce323b95d9daf2db112"
+ENV AITER_COMMIT_DEFAULT="9127c94a18e4398e1eba91f6639e910f0994ad02"
 
 # ===============================
 # Chosen arch and args
diff --git a/python/sglang/srt/layers/attention/aiter_backend.py b/python/sglang/srt/layers/attention/aiter_backend.py
index 9d990a9ad..c3dea8ab3 100755
--- a/python/sglang/srt/layers/attention/aiter_backend.py
+++ b/python/sglang/srt/layers/attention/aiter_backend.py
@@ -845,6 +845,8 @@ class AiterAttnBackend(AttentionBackend):
             reduce_final_map,
             reduce_partial_map,
             tile_q,
+            # Prefill PS metadata has no split cap; 0 keeps AITER's default reduce sizing.
+            0,
             output,
             final_lse,
         )