diff --git a/tesseract_task_composer/planning/src/nodes/process_planning_input_task.cpp b/tesseract_task_composer/planning/src/nodes/process_planning_input_task.cpp
index 07e57757145..fbda0c21e1f 100644
--- a/tesseract_task_composer/planning/src/nodes/process_planning_input_task.cpp
+++ b/tesseract_task_composer/planning/src/nodes/process_planning_input_task.cpp
@@ -52,7 +52,7 @@ ProcessPlanningInputTask::ProcessPlanningInputTask(std::string name,
     throw std::runtime_error("ProcessPlanningInputTask, config should not have 'inputs' entry");
 
   if (output_keys_.empty())
-    throw std::runtime_error("ProcessPlanningInputTask, config missing 'inputs' entry");
+    throw std::runtime_error("ProcessPlanningInputTask, config missing 'outputs' entry");
 
   if (output_keys_.size() != 1)
     throw std::runtime_error("ProcessPlanningInputTask, 'outputs' should only have one key");