diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index 1616eacffc65..f4c26d07322a 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -445,6 +445,7 @@ let
     ape = [ pkgs.libiconv ];
     expm = [ pkgs.libiconv ];
     mnormt = [ pkgs.libiconv ];
+    pan = [ pkgs.libiconv ];
     phangorn = [ pkgs.libiconv ];
     quadprog = [ pkgs.libiconv ];
     sundialr = [ pkgs.libiconv ];