diff --git a/guix/profiles.scm b/guix/profiles.scm
index 669ebe04e5..de3a044646 100644
--- a/guix/profiles.scm
+++ b/guix/profiles.scm
@@ -1249,7 +1249,7 @@ (define zlib
   (define config.scm
     (scheme-file "config.scm"
                  #~(begin
-                     (define-module (guix config)
+                     (define-module #$'(guix config) ;placate Geiser
                        #:export (%libz))
 
                      (define %libz