diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc
index 6f3c076709a..a586dd9107c 100644
--- a/sql/sql_parse.cc
+++ b/sql/sql_parse.cc
@@ -7394,7 +7394,7 @@ long max_stack_used;
 */
 
 bool
-#ifdef __GNUC__
+#if defined __GNUC__ && !defined __clang__
 /*
   Do not optimize the function in order to preserve a stack variable creation.
   Otherwise, the variable pointed as "buf" can be removed due to a missing