diff --git a/gnu/services/base.scm b/gnu/services/base.scm
index 83dc406aac5fb1daf29b9005ee3f4e2efa373ada..0b82a9050710b3c96441d61d6bad482d903c748b 100644
--- a/gnu/services/base.scm
+++ b/gnu/services/base.scm
@@ -1481,7 +1481,9 @@ (define keys
 
 (define %default-authorized-guix-keys
   ;; List of authorized substitute keys.
-  (list (file-append guix "/share/guix/berlin.guix.gnu.org.pub")))
+  ;; TODO: Change to "berlin.guix.gnu.org.pub" when the 'guix' package is
+  ;; updated.
+  (list (file-append guix "/share/guix/berlin.guixsd.org.pub")))
 
 (define-record-type* <guix-configuration>
   guix-configuration make-guix-configuration