diff --git a/src/backend/executor/execParallel.c b/src/backend/executor/execParallel.c
index b1a3d91a1969045fb58f4ef407cb1a1897849964..47724080c9e2e95291332b1d73136237d2da1f65 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)