diff --git a/doc/tutorial-borrowed-ptr.md b/doc/tutorial-borrowed-ptr.md
index 4866f7b8f5e..59d58cadbec 100644
--- a/doc/tutorial-borrowed-ptr.md
+++ b/doc/tutorial-borrowed-ptr.md
@@ -302,7 +302,7 @@ rejected by the compiler):
 fn example3() -> int {
     let mut x = ~X {f: 3};
     let y = &x.f;
-    x = ~{f: 4};  // Error reported here.
+    x = ~X {f: 4};  // Error reported here.
     *y
 }
 ~~~
@@ -369,9 +369,11 @@ box's owner. Consider a program like this:
 ~~~
 struct R { g: int }
 struct S { mut f: ~R }
-fn example5a(x: @S ...) -> int {
+fn example5a(x: @S, callback: @fn()) -> int {
     let y = &x.f.g;   // Error reported here.
     ...
+    callback();
+    ...
 #   return 0;
 }
 ~~~