diff --git a/src/backend/executor/execParallel.c b/src/backend/executor/execParallel.c
index b1a3d91a196..47724080c9e 100644
--- a/src/backend/executor/execParallel.c
+++ b/src/backend/executor/execParallel.c
@@ -172,7 +172,7 @@ ExecSerializePlan(Plan *plan, EState *estate)
  * shm_toc_estimate_keys on &pcxt->estimator.
  *
  * While we're at it, count the number of PlanState nodes in the tree, so
- * we know how many SharedPlanStateInstrumentation structures we need.
+ * we know how many Instrumentation structures we need.
  */
 static bool
 ExecParallelEstimate(PlanState *planstate, ExecParallelEstimateContext *e)