diff --git a/DBMS/Day-2/Exercise-5.txt b/DBMS/Day-2/Exercise-5.txt
index a14490c..8f7fb70 100644
--- a/DBMS/Day-2/Exercise-5.txt
+++ b/DBMS/Day-2/Exercise-5.txt
@@ -1,10 +1,11 @@
 CREATE TABLE Match(
-  MId INTEGER PRIMARY KEY,
+  MId INTEGER,
   TId INTEGER REFERENCES Tournament(TournamentId),
   Player1 INTEGER REFERENCES Player(PlayerId),
   Player2 INTEGER REFERENCES Player(PlayerId),
   MatchDt DATE NOT NULL,
   Winner INTEGER REFERENCES Player(PlayerId),
   Score VARCHAR2(30) NOT NULL,
+  CONSTRAINT match_pk PRIMARY KEY(MId,TId),
   CONSTRAINT playler_id_ck CHECK(Player1 <> Player2)
-)
\ No newline at end of file
+)