diff --git a/blog/post/03-set-up-rust.md b/blog/post/03-set-up-rust.md
index 3f7b078a..e383d685 100644
--- a/blog/post/03-set-up-rust.md
+++ b/blog/post/03-set-up-rust.md
@@ -57,7 +57,7 @@ Now we place our root source file in `src/lib.rs`:
 pub extern fn rust_main() {}
 
 #[lang = "eh_personality"] extern fn eh_personality() {}
-#[lang = "panic_fmt"] #[no_mangle] extern fn panic_fmt() -> ! {loop{}}
+#[lang = "panic_fmt"] #[no_mangle] pub extern fn panic_fmt() -> ! {loop{}}
 ```
 Let's break it down:
 
diff --git a/blog/post/05-allocating-frames.md b/blog/post/05-allocating-frames.md
index f6de3ad9..ed2958d3 100644
--- a/blog/post/05-allocating-frames.md
+++ b/blog/post/05-allocating-frames.md
@@ -104,7 +104,7 @@ We used `expect` in the code above, which will panic if there is no memory map t
 ```rust
 #[lang = "panic_fmt"]
 #[no_mangle]
-extern fn panic_fmt() -> ! {
+pub extern fn panic_fmt() -> ! {
     println!("PANIC");
     loop{}
 }
@@ -114,7 +114,7 @@ Now we get a `PANIC` message. But we can do even better. The `panic_fmt` functio
 ```rust
 #[lang = "panic_fmt"]
 #[no_mangle]
-extern fn panic_fmt(fmt: core::fmt::Arguments, file: &'static str,
+pub extern fn panic_fmt(fmt: core::fmt::Arguments, file: &'static str,
     line: u32) -> !
 {
     println!("\n\nPANIC in {} at line {}:", file, line);