diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index 3758a7db6907..0ef0529e3dff 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -1001,6 +1001,10 @@ let
       libdeflate
     ];
     island = [ pkgs.gsl.dev ];
+    knowYourCG = with pkgs; [
+      zlib.dev
+      ncurses.dev
+    ];
     svKomodo = [ pkgs.which ];
     ulid = [ pkgs.zlib.dev ];
     unrtf = with pkgs; [