diff --git a/src/backend/tcop/utility.c b/src/backend/tcop/utility.c
index 91021168653..c6d2e26b0ae 100644
--- a/src/backend/tcop/utility.c
+++ b/src/backend/tcop/utility.c
@@ -2864,6 +2864,10 @@ GetCommandLogLevel(Node *parsetree)
 			lev = LOGSTMT_DDL;
 			break;
 
+		case T_AlterOperatorStmt:
+			lev = LOGSTMT_DDL;
+			break;
+
 		case T_AlterTableMoveAllStmt:
 		case T_AlterTableStmt:
 			lev = LOGSTMT_DDL;