diff --git a/sql/ha_innodb.cc b/sql/ha_innodb.cc
index 5b0e5377962..5c81dd2163c 100644
--- a/sql/ha_innodb.cc
+++ b/sql/ha_innodb.cc
@@ -4848,7 +4848,8 @@ ha_innobase::get_foreign_key_create_info(void)
 		fclose(file);
 	} else {
 		/* unable to create temporary file */
-          	str = my_malloc(1, MYF(MY_ZEROFILL));
+          	str = my_strdup(
+"/* Error: cannot display foreign key constraints */", MYF(0));
 	}
 
   	return(str);