diff --git a/Server/Controllers/AuthenticationController.cs b/Server/Controllers/AuthenticationController.cs
index 9e676af..dbafe9c 100644
--- a/Server/Controllers/AuthenticationController.cs
+++ b/Server/Controllers/AuthenticationController.cs
@@ -24,7 +24,7 @@ public class AuthenticationController : ControllerBase
         
         if (!success)
         {
-            return BadRequest(content);
+            return BadRequest(new AuthenticationResponse {IsError = true, ErrorMessage = content} );
         }
 
         return await Login(request);
@@ -38,7 +38,7 @@ public class AuthenticationController : ControllerBase
         
         if (!success)
         {
-            return BadRequest("Username or password is incorrect.");
+            return BadRequest(new AuthenticationResponse {IsError = true, ErrorMessage = "Username or password is incorrect."});
         }
 
         return Ok(new AuthenticationResponse { Token = content } );
diff --git a/SharedModels/Responses/AuthenticationResponse.cs b/SharedModels/Responses/AuthenticationResponse.cs
index 6075a3e..26ae9ca 100644
--- a/SharedModels/Responses/AuthenticationResponse.cs
+++ b/SharedModels/Responses/AuthenticationResponse.cs
@@ -2,5 +2,8 @@ namespace DatabaseModels.Responses;
 
 public class AuthenticationResponse
 {
+    public bool IsError { get; set; }
+    public string ErrorMessage { get; set; } = null!;
+    
     public string Token { get; set; } = null!;
 }
\ No newline at end of file
diff --git a/SharedModels/SharedModels.csproj b/SharedModels/SharedModels.csproj
index c58f151..1842c76 100644
--- a/SharedModels/SharedModels.csproj
+++ b/SharedModels/SharedModels.csproj
@@ -8,7 +8,7 @@
     </PropertyGroup>
 
     <Target Name="PostBuild" AfterTargets="PostBuildEvent">
-      <Exec Command="cp ./bin/Release/net6.0/SharedModels.dll /home/danil/Unity/Projects/untiteled-mobile-game/Assets/Imported\ Assets/Plugins/SharedModels.dll" />
+      <Exec Command="cp ./bin/Release/net6.0/SharedModels.dll /home/danil/Unity/Projects/untiteled-mobile-game/Assets/Imported\ Assets/SharedModels.dll" />
     </Target>
 
 </Project>