diff --git a/webif/lib/rsv.class b/webif/lib/rsv.class
index ebe3a90..0af5c55 100755
--- a/webif/lib/rsv.class
+++ b/webif/lib/rsv.class
@@ -1,3 +1,5 @@
+# vim: syntax=tcl
+
 source /mod/webif/lib/setup
 
 if {![exists -proc class]} { package require oo }