diff --git a/Sources/Stim.Model/User.cs b/Sources/Stim.Model/User.cs
index eb05410..d32de9f 100644
--- a/Sources/Stim.Model/User.cs
+++ b/Sources/Stim.Model/User.cs
@@ -24,7 +24,16 @@ namespace Model
         }
         private string username;
 
-        public string Biographie { get; set; }
+        public string Biographie 
+        {
+            get { return Biographie;} 
+            private set
+            {
+                if (value == null || value == "") return;
+                biographie = value;
+            }
+        }
+        private string? biographie;
 
         public string Email
         {
@@ -53,7 +62,11 @@ namespace Model
 
         public int Role { get; }
         private int role;
-        public List<Game> Followed_Games { get; set; }
+        public List<Game> Followed_Games 
+        {
+            get;
+            private init;
+        }
 
         public User(string username, string biographie, string email, string password)
         {
diff --git a/Sources/TestProject1/TestUser.cs b/Sources/TestProject1/TestUser.cs
index cbb5671..c867d81 100644
--- a/Sources/TestProject1/TestUser.cs
+++ b/Sources/TestProject1/TestUser.cs
@@ -25,5 +25,16 @@ namespace Test
             User user2 = new(null, "biographie", "adresse.mail@gmail.com", "Azerty123*");
             Assert.Null(user.Username);
         }
+        [Fact]
+        public void AddingGameToFollowed()
+        {
+            User user = new("username", "biographie", "adresse.mail@gmail.com", "Azerty123*");
+            Assert.Empty(user.Followed_Games);
+
+            Game game = new("name", "description", 2012, new string[] {"1","2","3"});
+            Assert.NotNull(game);
+            user.FollowAGame(game);
+            Assert.Single(user.Followed_Games);
+        }
     }
 }