diff --git a/custom_ops/gpu_ops/speculate_decoding/top_p_candidates.cu b/custom_ops/gpu_ops/speculate_decoding/top_p_candidates.cu
index a9e66862f..9caf30a32 100644
--- a/custom_ops/gpu_ops/speculate_decoding/top_p_candidates.cu
+++ b/custom_ops/gpu_ops/speculate_decoding/top_p_candidates.cu
@@ -75,12 +75,25 @@ struct BlockPrefixCallbackOp {
     } break
 
 #define FIXED_TOPK(...)                \
+    FIXED_TOPK_BASE(1, ##__VA_ARGS__); \
     FIXED_TOPK_BASE(2, ##__VA_ARGS__); \
     FIXED_TOPK_BASE(3, ##__VA_ARGS__); \
     FIXED_TOPK_BASE(4, ##__VA_ARGS__); \
     FIXED_TOPK_BASE(5, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(6, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(7, ##__VA_ARGS__); \
     FIXED_TOPK_BASE(8, ##__VA_ARGS__); \
-    FIXED_TOPK_BASE(10, ##__VA_ARGS__)
+    FIXED_TOPK_BASE(9, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(10, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(20, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(30, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(40, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(50, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(60, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(70, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(80, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(90, ##__VA_ARGS__); \
+    FIXED_TOPK_BASE(100, ##__VA_ARGS__);
 
 struct SegmentOffsetIter {
     explicit SegmentOffsetIter(int num_cols) : num_cols_(num_cols) {}
@@ -502,8 +515,9 @@ void DispatchTopK(const T* src,
                     max_seq_len));
             default:
                 PD_THROW(
-                    "the input data shape has error in the topp_beam_topk "
-                    "kernel.");
+                    "Invalid max_candidate_len. Please set a value in [1,10] (step=1) "
+                    "or [10,100] (step=10)."
+                );
         });
         default:
             PD_THROW("the input topk is not implemented.");