diff --git a/src/backend/utils/adt/ruleutils.c b/src/backend/utils/adt/ruleutils.c
index 9e90acedb9..53588218cc 100644
--- a/src/backend/utils/adt/ruleutils.c
+++ b/src/backend/utils/adt/ruleutils.c
@@ -2940,8 +2940,6 @@ pg_get_functiondef(PG_FUNCTION_ARGS)
 	float4		procost;
 	int			oldlen;
 
-	initStringInfo(&buf);
-
 	/* Look up the function */
 	proctup = SearchSysCache1(PROCOID, ObjectIdGetDatum(funcid));
 	if (!HeapTupleIsValid(proctup))
@@ -2957,6 +2955,8 @@ pg_get_functiondef(PG_FUNCTION_ARGS)
 
 	isfunction = (proc->prokind != PROKIND_PROCEDURE);
 
+	initStringInfo(&buf);
+
 	/*
 	 * We always qualify the function name, to ensure the right function gets
 	 * replaced.
@@ -3614,8 +3614,6 @@ pg_get_function_sqlbody(PG_FUNCTION_ARGS)
 	HeapTuple	proctup;
 	bool		isnull;
 
-	initStringInfo(&buf);
-
 	/* Look up the function */
 	proctup = SearchSysCache1(PROCOID, ObjectIdGetDatum(funcid));
 	if (!HeapTupleIsValid(proctup))
@@ -3628,6 +3626,7 @@ pg_get_function_sqlbody(PG_FUNCTION_ARGS)
 		PG_RETURN_NULL();
 	}
 
+	initStringInfo(&buf);
 	print_function_sqlbody(&buf, proctup);
 
 	ReleaseSysCache(proctup);