diff --git a/src/intel/blorp/blorp_genX_exec_brw.h b/src/intel/blorp/blorp_genX_exec_brw.h
index 1e3fad08df1..a50630eccd9 100644
--- a/src/intel/blorp/blorp_genX_exec_brw.h
+++ b/src/intel/blorp/blorp_genX_exec_brw.h
@@ -1633,6 +1633,7 @@ blorp_exec_compute(struct blorp_batch *batch, const struct blorp_params *params)
    assert(cs_prog_data->push.per_thread.regs == 0);
    blorp_emit(batch, GENX(COMPUTE_WALKER), cw) {
       cw.SIMDSize                       = dispatch.simd_size / 16;
+      cw.MessageSIMD                    = dispatch.simd_size / 16,
       cw.LocalXMaximum                  = cs_prog_data->local_size[0] - 1;
       cw.LocalYMaximum                  = cs_prog_data->local_size[1] - 1;
       cw.LocalZMaximum                  = cs_prog_data->local_size[2] - 1;
diff --git a/src/intel/vulkan/genX_simple_shader.c b/src/intel/vulkan/genX_simple_shader.c
index 7ec6fd5afdd..bfe1ba2b5bf 100644
--- a/src/intel/vulkan/genX_simple_shader.c
+++ b/src/intel/vulkan/genX_simple_shader.c
@@ -551,6 +551,7 @@ genX(emit_simple_shader_dispatch)(struct anv_simple_shader *state,
 #if GFX_VERx10 >= 125
       anv_batch_emit(batch, GENX(COMPUTE_WALKER), cw) {
          cw.SIMDSize                       = dispatch.simd_size / 16;
+         cw.MessageSIMD                    = dispatch.simd_size / 16,
          cw.IndirectDataStartAddress       = push_state.offset;
          cw.IndirectDataLength             = push_state.alloc_size;
          cw.LocalXMaximum                  = prog_data->local_size[0] - 1;