diff --git a/pkgs/distro-build/pack-and-catalog.rkt b/pkgs/distro-build/pack-and-catalog.rkt
index 656dca97e2..dc86437675 100644
--- a/pkgs/distro-build/pack-and-catalog.rkt
+++ b/pkgs/distro-build/pack-and-catalog.rkt
@@ -132,7 +132,7 @@
                                            (if (symbol? r)
                                                (format "~a@racket-lang.org" r)
                                                r))
-                                         ", ")
+                                         " ")
                     'description (get 'pkg-desc)
                     'tags '()
                     'dependencies '()