diff --git a/src/amd/vulkan/radv_acceleration_structure.c b/src/amd/vulkan/radv_acceleration_structure.c
index 42b6357badd..a31dd5204da 100644
--- a/src/amd/vulkan/radv_acceleration_structure.c
+++ b/src/amd/vulkan/radv_acceleration_structure.c
@@ -908,7 +908,7 @@ ploc_build_internal(VkCommandBuffer commandBuffer, uint32_t infoCount,
                             cmd_buffer->device->meta_state.accel_struct_build.ploc_p_layout,
                             VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(consts), &consts);
       vk_common_CmdDispatch(commandBuffer,
-                            MAX2(DIV_ROUND_UP(bvh_states[i].node_count, 64), 1), 1, 1);
+                            MAX2(DIV_ROUND_UP(bvh_states[i].node_count, PLOC_WORKGROUP_SIZE), 1), 1, 1);
    }
 }