diff --git a/Liam/Liam.ino b/Liam/Liam.ino
index bd5a0e7..0b8e14f 100644
--- a/Liam/Liam.ino
+++ b/Liam/Liam.ino
@@ -520,3 +520,9 @@ void loop() {
   }
 #endif
 }
+
+// The following sets C++ mode in Emacs
+//
+// Local Variables:
+// mode:c++
+// End: