diff --git a/src/modules/Mysql/result.c b/src/modules/Mysql/result.c
index 72bac46697a5b4d08676b1c5e5ff5e4889ecb756..6e793806b7ba3b995772141292534e3f4e1d55c3 100644
--- a/src/modules/Mysql/result.c
+++ b/src/modules/Mysql/result.c
@@ -905,6 +905,7 @@ void exit_mysql_res(void)
     free_program(mysql_result_program);
     mysql_result_program = NULL;
   }
+  free_svalue (&mpq_program);
 }
 
 #else