diff --git a/pkgs/applications/editors/emacs/elisp-packages/ess-R-object-popup/default.nix b/pkgs/applications/editors/emacs/elisp-packages/ess-R-object-popup/default.nix
index 9bbe7e4ca550..fa7725fbb94c 100644
--- a/pkgs/applications/editors/emacs/elisp-packages/ess-R-object-popup/default.nix
+++ b/pkgs/applications/editors/emacs/elisp-packages/ess-R-object-popup/default.nix
@@ -1,6 +1,7 @@
 { lib
 , trivialBuild
 , fetchFromGitHub
+, emacs
 }:
 
 trivialBuild rec {