diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 9ecb1f59b4d..bed19376547 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -11476,7 +11476,7 @@ let
   });
   emacs24Macport = self.emacs24Macport_24_5;
 
-  emacs25pre = callPackage ../applications/editors/emacs-25 {
+  emacs25pre = lowPrio (callPackage ../applications/editors/emacs-25 {
     # use override to enable additional features
     libXaw = xorg.libXaw;
     Xaw3d = null;