diff --git a/aspnetcore/fundamentals/minimal-apis/min-api-filters/7samples/todo/Program.cs b/aspnetcore/fundamentals/minimal-apis/min-api-filters/7samples/todo/Program.cs
index e11d1fc145..d603c642a0 100644
--- a/aspnetcore/fundamentals/minimal-apis/min-api-filters/7samples/todo/Program.cs
+++ b/aspnetcore/fundamentals/minimal-apis/min-api-filters/7samples/todo/Program.cs
@@ -108,23 +108,23 @@ app.MapPut("/todoitems/{id}", async (Todo inputTodo, int id, TodoDb db) =>
     await db.SaveChangesAsync();
 
     return Results.NoContent();
-}).AddEndpointFilterFactory(async (filterFactoryContext, next) =>
+}).AddEndpointFilterFactory((filterFactoryContext, next) =>
 {
-    var parameters = context.MethodInfo.GetParameters();
+    var parameters = filterFactoryContext.MethodInfo.GetParameters();
     if (parameters.Length >= 1 && parameters[0].ParameterType == typeof(Todo))
     {
         return async invocationContext =>
         {
             var todoParam = invocationContext.GetArgument<Todo>(0);
 
-            var validationError = Utilities.IsValid(tdparam);
+            var validationError = Utilities.IsValid(todoParam);
 
             if (!string.IsNullOrEmpty(validationError))
             {
                 return Results.Problem(validationError);
             }
-            return await next(invocationContextContext);
-        }
+            return await next(invocationContext);
+        };
     }
     return invocationContext => next(invocationContext); 
 });