diff --git a/python/sglang/srt/layers/attention/flashattention_backend.py b/python/sglang/srt/layers/attention/flashattention_backend.py
index 98e0e9ecc..672605560 100644
--- a/python/sglang/srt/layers/attention/flashattention_backend.py
+++ b/python/sglang/srt/layers/attention/flashattention_backend.py
@@ -2519,7 +2519,8 @@ def update_draft_decode_set_expand_metadata_with_page_size(
     last_page_lens_broadcast = expanded_last_page_lens.unsqueeze(-1).expand(
         -1, expand_page_table.shape[1]
     )
-    expand_page_table -= last_page_lens_broadcast
+    num_seqs = expand_page_table.shape[0]
+    expand_page_table -= last_page_lens_broadcast[:num_seqs]
     expand_page_table = (
         expand_page_table[
             :, strided_indices_expand[: (decode_length + page_size - 1) // page_size]
@@ -2527,4 +2528,4 @@ def update_draft_decode_set_expand_metadata_with_page_size(
         // page_size
     )
     max_seq_pages_expand = (decode_length + page_size - 1) // page_size
-    page_table[:, :max_seq_pages_expand].copy_(expand_page_table)
+    page_table[:num_seqs, :max_seq_pages_expand].copy_(expand_page_table)
diff --git a/test/registered/spec/eagle/test_eagle_infer_a.py b/test/registered/spec/eagle/test_eagle_infer_a.py
index 5c7e0d956..e70a92ece 100644
--- a/test/registered/spec/eagle/test_eagle_infer_a.py
+++ b/test/registered/spec/eagle/test_eagle_infer_a.py
@@ -228,6 +228,7 @@ class TestEAGLERadixCache(CustomTestCase):
             # Chunked prefill & Page Size > 1
             {**self.BASE_CONFIG, "chunked_prefill_size": 64, "page_size": 4},
             {**self.BASE_CONFIG, "page_size": 4},
+            {**self.BASE_CONFIG, "cuda_graph_bs": [5], "page_size": 4},
             # Preferred by some kernels
             {**self.BASE_CONFIG, "page_size": 64},
             # Disable CUDA Graph