diff --git a/app/ghcup/Main.hs b/app/ghcup/Main.hs
index a418424b..37932a65 100644
--- a/app/ghcup/Main.hs
+++ b/app/ghcup/Main.hs
@@ -162,10 +162,18 @@ main = do
         )
 
   let main_footer = [s|Discussion:
-  ghcup installs the Glasgow Haskell Compiler from the official
+  ghcup installs the Haskell development tools from the configured
   release channels, enabling you to easily switch between different
   versions. It maintains a self-contained ~/.ghcup directory.
 
+Release Channels:
+  * default: maintained by GHCup (recommended)
+  * cross: contains experimental cross compilers
+  * prereleases: contains pre-releases of all tools
+  * vanilla: similar to default but only uses upstream bindists
+    (no patches/fixes are applied, no missing platforms added)
+More details at <https://www.haskell.org/ghcup/guide/#release-channels>
+
 ENV variables:
   * GHCUP_INSTALL_BASE_PREFIX: the base of ghcup (default: $HOME)
   * GHCUP_USE_XDG_DIRS: set to anything to use XDG style directories
diff --git a/lib-opt/GHCup/OptParse.hs b/lib-opt/GHCup/OptParse.hs
index 5a4faa2e..20aec802 100644
--- a/lib-opt/GHCup/OptParse.hs
+++ b/lib-opt/GHCup/OptParse.hs
@@ -146,7 +146,6 @@ opts =
             <> long "url-source"
             <> metavar "<URL_SOURCE|cross|prereleases|vanilla|default>"
             <> help "Alternative ghcup download info"
-            <> internal
             <> completer urlSourceCompleter
             )
           )