diff --git a/gnu/services/version-control.scm b/gnu/services/version-control.scm
index 208351447..8666648c0 100644
--- a/gnu/services/version-control.scm
+++ b/gnu/services/version-control.scm
@@ -194,7 +194,7 @@ access to exported repositories under @file{/srv/git}."
             (letrec-syntax ((option (syntax-rules ()
                                       ((_ key value)
                                        (if value
-                                           `(,key "=" ,value)
+                                           `(,key "=" ,value "\n")
                                            '()))))
                             (key/value (syntax-rules ()
                                          ((_ (key value) rest ...)