diff --git a/guix-config/system/base-system.scm b/guix-config/system/base-system.scm
index 69f5747..84c66d5 100644
--- a/guix-config/system/base-system.scm
+++ b/guix-config/system/base-system.scm
@@ -1,3 +1,4 @@
+; installed guix: 1761913702
 (define-module (guix-config system base-system)
   #:use-module (gnu)
   #:use-module (gnu services dbus)