diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index 2082dff7a3a5..0f70ae44e80c 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -544,6 +544,7 @@ let
     webp = [ pkgs.libwebp ];
     RMark = [ pkgs.which ];
     RPushbullet = [ pkgs.which ];
+    stpphawkes = [ pkgs.gsl ];
     RCurl = [ pkgs.curl.dev ];
     R2SWF = [ pkgs.pkg-config ];
     rgl = with pkgs; [ libGLU libGLU.dev libGL xorg.libX11.dev freetype.dev libpng.dev ];