diff --git a/libmariadb/mariadb_dyncol.c b/libmariadb/mariadb_dyncol.c
index 63be7772..80bb7235 100644
--- a/libmariadb/mariadb_dyncol.c
+++ b/libmariadb/mariadb_dyncol.c
@@ -3612,7 +3612,6 @@ end:
 create_new_string:
   /* There is no columns from before, so let's just add the new ones */
   rc= ER_DYNCOL_OK;
-  free(alloc_plan);
   if (not_null != 0)
     rc= dynamic_column_create_many_internal_fmt(str, add_column_count,
                                                 (uint*)column_keys, values,