diff --git a/prolog.nanorc b/prolog.nanorc
index 56165d4..ecd9e41 100644
--- a/prolog.nanorc
+++ b/prolog.nanorc
@@ -1,6 +1,6 @@
 ## Here is a prolog example.
 
-syntax prolog "\.pl"
+syntax "prolog" "\.pl"
 comment "%"
 
 # Reset everything