diff --git a/gnu/packages/xdisorg.scm b/gnu/packages/xdisorg.scm
index 631d545fb..b015f5a35 100644
--- a/gnu/packages/xdisorg.scm
+++ b/gnu/packages/xdisorg.scm
@@ -1026,22 +1026,21 @@ actions, a built-in clock, a battery monitor and a system tray.")
     (license license:gpl2)))
 
 (define-public dzen
-  (let
-      ((commit "c3f29bc928d5900971f65965feaae59e1272a3f7")
-       (revision "1"))
+  (let ((commit "c3f29bc928d5900971f65965feaae59e1272a3f7")
+        (revision "1"))
     (package
      (name "dzen")
-     (version (string-append
-               "0.9.5-" ; Taken from `config.mk`.
-               revision "-" (string-take commit 7)))
+     (version (string-append "0.9.5-" ; Taken from `config.mk`.
+                             revision "." (string-take commit 7)))
      (source (origin
               (method git-fetch)
               (uri (git-reference
                     (url "https://github.com/robm/dzen.git")
                     (commit commit)))
               (file-name (string-append name "-" version))
-              (sha256 (base32
-                       "0y47d6ii87vf4a517gi4fh0yl06f8b085sra77immnsasbq9pxnw"))))
+              (sha256
+               (base32
+                "0y47d6ii87vf4a517gi4fh0yl06f8b085sra77immnsasbq9pxnw"))))
      (build-system gnu-build-system)
      (arguments
       `(#:tests? #f ; No test suite.