diff --git a/src/workgroups-association.el b/src/workgroups-association.el
index dd32758e274629e6f9ccd03e119623d569faaaf3..3cbd7e82e7941ee3aca38da6cdacc1ac39016d88 100644
--- a/src/workgroups-association.el
+++ b/src/workgroups-association.el
@@ -4,7 +4,7 @@
 
 (require 'workgroups-structs)
 (require 'workgroups-variables)
-(require 'workgroups-utils-basic)
+(require 'workgroups-session)
 
 (defvar wg-buffer-workgroup nil
   "Associating each buffer with the workgroup.