diff --git a/pkgs/development/ruby-modules/gem-config/default.nix b/pkgs/development/ruby-modules/gem-config/default.nix
index 580efc2278ec..95b5033cc9d2 100644
--- a/pkgs/development/ruby-modules/gem-config/default.nix
+++ b/pkgs/development/ruby-modules/gem-config/default.nix
@@ -153,6 +153,10 @@ in
     ];
   };
 
+  typhoeus = attrs: {
+    buildInputs = [ curl ];
+  };
+
   tzinfo = attrs: {
     dontBuild = false;
     postPatch = ''