diff --git a/src/gausskernel/optimizer/commands/explain.cpp b/src/gausskernel/optimizer/commands/explain.cpp
index 611006692..232310df9 100755
--- a/src/gausskernel/optimizer/commands/explain.cpp
+++ b/src/gausskernel/optimizer/commands/explain.cpp
@@ -79,6 +79,7 @@ THR_LOCAL bool PTFastQueryShippingStore = true;
 THR_LOCAL bool IsExplainPlanStmt = false;
 THR_LOCAL bool IsExplainPlanSelectForUpdateStmt = false;
 
+template void PlanTable::set_plan_name<true, true>();
 extern TrackDesc trackdesc[];
 extern sortMessage sortmessage[];