diff --git a/prompt_fred_setup b/prompt_fred_setup
index 24a718a..c93394e 100644
--- a/prompt_fred_setup
+++ b/prompt_fred_setup
@@ -1,3 +1,4 @@
+# -*-mode: sh-*-
 # My mess of various themes
 
 if [[ $(locale charmap) != UTF-8 || "$TERM" == linux ]]