diff --git a/el/sclang-dev.el b/el/sclang-dev.el
index 2903c38..6deabea 100644
--- a/el/sclang-dev.el
+++ b/el/sclang-dev.el
@@ -11,6 +11,8 @@
   (sclang-perform-command 'openDevSource (buffer-file-name))
   )
 
+(provide 'sclang-dev)
+
 ;(defun sclang-open-dev-source (file)
 ;  "Open the help file at the development location."
 ;  (if (sclang-html-file-p file)
diff --git a/el/sclang-mode.el b/el/sclang-mode.el
index 0884d3e..f468eef 100644
--- a/el/sclang-mode.el
+++ b/el/sclang-mode.el
@@ -22,6 +22,7 @@
 
 (require 'sclang-interp)
 (require 'sclang-language)
+(require 'sclang-dev)
 
 (defun sclang-fill-syntax-table (table)
   ;; string