diff --git a/sql/sql_db.cc b/sql/sql_db.cc
index 64ad205803e099d8962d41604d2be74707b36444..3158c8cbf7b0b9ce636b17da1c2e73432e02b34f 100644
--- a/sql/sql_db.cc
+++ b/sql/sql_db.cc
@@ -104,14 +104,14 @@ int mysql_create_db(THD *thd, char *db, uint create_options, bool silent)
   DBUG_RETURN(error);
 }
 
-const char *del_exts[]= {".frm", ".BAK", NullS};
+const char *del_exts[]= {".frm", ".BAK", ".TMD", NullS};
 static TYPELIB deletable_extentions=
 {array_elements(del_exts)-1,"del_exts", del_exts};
 
 const char *known_exts[]=
-{".ISM",".ISD",".ISM",".MRG",".MYI",".MYD", ".db", NullS};
+{".ISM",".ISD",".ISM",".MRG",".MYI",".MYD",".db",NullS};
 static TYPELIB known_extentions=
-{array_elements(del_exts)-1,"del_exts", known_exts};
+{array_elements(known_exts)-1,"known_exts", known_exts};
 
 /*
   Drop all tables in a database.