1 files changed, 4 insertions, 1 deletions
diff --git a/examples/message.rs b/examples/message.rs
index 3fb28121..596f2449 100644
--- a/examples/message.rs
+++ b/examples/message.rs
@@ -43,7 +43,10 @@ const APP: () = {
         c.spawn.foo().unwrap();
     }
 
+    // RTIC requires that unused interrupts are declared in an extern block when
+    // using software tasks; these free interrupts will be used to dispatch the
+    // software tasks.
     extern "C" {
-        fn UART0();
+        fn SSI0();
     }
 };