diff --git a/pkgs/applications/editors/emacs-modes/melpa-packages.nix b/pkgs/applications/editors/emacs-modes/melpa-packages.nix
index 60cbf486777..a13093d964e 100644
--- a/pkgs/applications/editors/emacs-modes/melpa-packages.nix
+++ b/pkgs/applications/editors/emacs-modes/melpa-packages.nix
@@ -50,9 +50,6 @@ self:
       # upstream issue: missing package version
       cmake-mode = markBroken (dontConfigure super.cmake-mode);
 
-      # upstream issue: missing file header
-      cn-outline = markBroken super.cn-outline;
-
       # upstream issue: missing file header
       connection = markBroken super.connection;