diff --git a/default.nix b/default.nix
index f7b7a973..c475063b 100644
--- a/default.nix
+++ b/default.nix
@@ -45,9 +45,10 @@ let
     notmuch = pkgs.notmuch;
     gpgme = pkgs.gpgme;
     pkg-config = pkgs.pkg-config;
+    libiconv = pkgs.libiconv;
     buildNoDefaultFeatures = !defaultFeatures;
     buildFeatures = lib.strings.splitString "," features;
-    binutils = pkgs.binutils;
+    binutils = pkgs.buildPackages.binutils;
   };
 
 in
diff --git a/package.nix b/package.nix
index 6d6749dc..6c69b64e 100644
--- a/package.nix
+++ b/package.nix
@@ -1,4 +1,5 @@
 { lib
+, libiconv
 , pkg-config
 , hostPlatform
 , rustPlatform