diff --git a/planning/planning_validator/src/planning_validator.cpp b/planning/planning_validator/src/planning_validator.cpp
index 05791a75e5038..da0fb72e0d775 100644
--- a/planning/planning_validator/src/planning_validator.cpp
+++ b/planning/planning_validator/src/planning_validator.cpp
@@ -296,7 +296,7 @@ void PlanningValidator::validate(const Trajectory & trajectory)
 
 bool PlanningValidator::checkValidSize(const Trajectory & trajectory)
 {
-  return trajectory.points.size() < 2 ? false : true;
+  return trajectory.points.size() >=2;
 }
 
 bool PlanningValidator::checkValidFiniteValue(const Trajectory & trajectory)