diff --git a/dsv4/kernels/attention/fmha_multihead_capi.cu b/dsv4/kernels/attention/fmha_multihead_capi.cu
index 9728b89c..92979192 100644
--- a/dsv4/kernels/attention/fmha_multihead_capi.cu
+++ b/dsv4/kernels/attention/fmha_multihead_capi.cu
@@ -55,7 +55,6 @@ int fmha_multihead_decode_launch(
     params.s_k = N;
     params.scale = scale;
     params.head_dim = hd;
-    params.n_kv_tiles = 0;  // auto-calculate
     params.q_head_stride = q_head_stride;
     params.q_batch_stride = q_batch_stride;
     params.k_head_stride = k_head_stride;