diff --git a/nav2_smac_planner/src/a_star.cpp b/nav2_smac_planner/src/a_star.cpp
index 6a7e3fcc8bc..e4bb50d2d9a 100644
--- a/nav2_smac_planner/src/a_star.cpp
+++ b/nav2_smac_planner/src/a_star.cpp
@@ -195,7 +195,6 @@ void AStarAlgorithm<Node2D>::setGoal(
   const unsigned int & dim_3,
   const GoalHeadingMode & /*goal_heading_mode*/)
 {
-  (void) goal_heading_mode;
   if (dim_3 != 0) {
     throw std::runtime_error("Node type Node2D cannot be given non-zero goal dim 3.");
   }