diff --git a/glicid/services/parallel.scm b/glicid/services/parallel.scm
index 2236287..a410e58 100644
--- a/glicid/services/parallel.scm
+++ b/glicid/services/parallel.scm
@@ -79,7 +79,7 @@
     (system? #t)
     (comment "slurm server user")
     (uid 567) ;«magic number…»
-    (gid 567) ;«magic number…»
+    (group 567) ;«magic number…»
     (home-directory "/var/spool/slurm")
     (shell (file-append bash "/bin/bash"))))