diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index 25019f0d8a53..996e3932d2a2 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -439,6 +439,7 @@ let
     nlme = [ pkgs.libiconv ];
     Matrix = [ pkgs.libiconv ];
     mgcv = [ pkgs.libiconv ];
+    igraph = [ pkgs.libiconv ];
   };
 
   packagesRequireingX = [