diff --git a/src/common/backend/parser/gram.y b/src/common/backend/parser/gram.y
index bd334d3d0b31c9b1662f2e6d52780906a41a0530..5000ecedf4d28f62036dfeb9d8b9047dffd1ad9a 100644
--- a/src/common/backend/parser/gram.y
+++ b/src/common/backend/parser/gram.y
@@ -16751,7 +16751,7 @@ subprogram_body: 	{
 				yyextra->core_yy_extra.query_string_locationlist = 
 					lappend_int(yyextra->core_yy_extra.query_string_locationlist, yylloc);
 
-				funSrc = (FunctionSources*)palloc0(sizeof(FunctionSources));
+				funSrc = makeNode(FunctionSources);
 				funSrc->bodySrc   = proc_body_str;
 				funSrc->headerSrc = proc_header_str;