diff --git a/src/IdentityServer/Test/TestUserStore.cs b/src/IdentityServer/Test/TestUserStore.cs
index d77394e74..5ce8d7e1b 100644
--- a/src/IdentityServer/Test/TestUserStore.cs
+++ b/src/IdentityServer/Test/TestUserStore.cs
@@ -44,7 +44,7 @@ public bool ValidateCredentials(string username, string password)
                 return true;
             }
 
-            return user.Password.Equals(password);
+            return Equals(user.Password, password);
         }
 
         return false;