diff --git a/src/backend/optimizer/plan/createplan.c b/src/backend/optimizer/plan/createplan.c
index 89b90521e81..50c18508dc0 100644
--- a/src/backend/optimizer/plan/createplan.c
+++ b/src/backend/optimizer/plan/createplan.c
@@ -33,6 +33,7 @@
 #include "optimizer/planmain.h"
 #include "optimizer/planner.h"
 #include "optimizer/predtest.h"
+#include "optimizer/prep.h"
 #include "optimizer/restrictinfo.h"
 #include "optimizer/subselect.h"
 #include "optimizer/tlist.h"
@@ -1197,7 +1198,7 @@ create_indexscan_plan(PlannerInfo *root,
 			if (best_path->indexinfo->indpred)
 			{
 				if (baserelid != root->parse->resultRelation &&
-					get_parse_rowmark(root->parse, baserelid) == NULL)
+					get_plan_rowmark(root->rowMarks, baserelid) == NULL)
 					if (predicate_implied_by(clausel,
 											 best_path->indexinfo->indpred))
 						continue;		/* implied by index predicate */