diff --git a/src/Stores/IdentityUserLogin.cs b/src/Stores/IdentityUserLogin.cs
index f2c6d165d0..c049e90343 100644
--- a/src/Stores/IdentityUserLogin.cs
+++ b/src/Stores/IdentityUserLogin.cs
@@ -27,8 +27,8 @@ namespace Microsoft.AspNetCore.Identity
         public virtual string ProviderDisplayName { get; set; }
 
         /// <summary>
-        /// Gets or sets the of the primary key of the user associated with this login.
+        /// Gets or sets the primary key of the user associated with this login.
         /// </summary>
         public virtual TKey UserId { get; set; }
     }
-}
\ No newline at end of file
+}