diff --git a/nav2_costmap_2d/include/nav2_costmap_2d/costmap_2d_ros.hpp b/nav2_costmap_2d/include/nav2_costmap_2d/costmap_2d_ros.hpp
index 486178160c0..d8bb184e00a 100644
--- a/nav2_costmap_2d/include/nav2_costmap_2d/costmap_2d_ros.hpp
+++ b/nav2_costmap_2d/include/nav2_costmap_2d/costmap_2d_ros.hpp
@@ -171,7 +171,7 @@ class Costmap2DROS : public nav2_util::LifecycleNode
   {
     //lock because no ptr-access is allowed until other ptr-free finished
     std::unique_lock<Costmap2D::mutex_t> lock(*access_);
-    if (layered_costmap_ == nullptr) {
+    if (!layered_costmap_) {
       return false;                                // to avoid nullptr accessed
     }
     return layered_costmap_->isCurrent();