diff --git a/gnu/services/base.scm b/gnu/services/base.scm
index 6e99cbfec4..9fe0710717 100644
--- a/gnu/services/base.scm
+++ b/gnu/services/base.scm
@@ -465,7 +465,8 @@ FILE-SYSTEM."
 
 (define (file-system-shepherd-services file-systems)
   "Return the list of Shepherd services for FILE-SYSTEMS."
-  (let* ((file-systems (filter file-system-mount? file-systems)))
+  (let* ((file-systems (filter file-system-mount?
+                               (delete-duplicates file-systems))))
     (define sink
       (shepherd-service
        (provision '(file-systems))