diff --git a/src/items/external-blocks.md b/src/items/external-blocks.md
index 0053969a1..5e63e7eab 100644
--- a/src/items/external-blocks.md
+++ b/src/items/external-blocks.md
@@ -176,7 +176,7 @@ identifier.
 
 ```rust
 unsafe extern "C" {
-    safe fn foo(...);
+    unsafe fn foo(...);
     unsafe fn bar(x: i32, ...);
     unsafe fn with_name(format: *const u8, args: ...);
 }