diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index 149c94fee59a..00a84bf0e0a4 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -436,6 +436,7 @@ let
     cluster = [ pkgs.libiconv ];
     KernSmooth = [ pkgs.libiconv ];
     nlme = [ pkgs.libiconv ];
+    Matrix = [ pkgs.libiconv ];
   };
 
   packagesRequireingX = [