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-rw-r--r--gnu/services.scm3
1 files changed, 2 insertions, 1 deletions
diff --git a/gnu/services.scm b/gnu/services.scm
index e3d4fcc232..234ee372b8 100644
--- a/gnu/services.scm
+++ b/gnu/services.scm
@@ -292,7 +292,8 @@ for service of type '~a'")
 singleton service type NAME, of which the returned service is an instance."
   (let* ((extension (service-extension target identity))
          (type      (service-type (name name)
-                                  (extensions (list extension)))))
+                                  (extensions (list extension))
+                                  (description "This is a simple service."))))
     (service type value)))
 
 (define-syntax %modify-service