diff --git a/pkgs/development/ruby-modules/gem-config/default.nix b/pkgs/development/ruby-modules/gem-config/default.nix
index 485def66de3..47e70aaa8f0 100644
--- a/pkgs/development/ruby-modules/gem-config/default.nix
+++ b/pkgs/development/ruby-modules/gem-config/default.nix
@@ -26,7 +26,7 @@
 , file, libvirt, glib, vips, taglib, libopus, linux-pam, libidn, protobuf, fribidi, harfbuzz
 , bison, flex, pango, python3, patchelf, binutils, freetds, wrapGAppsHook, atk
 , bundler, libsass, libexif, libselinux, libsepol, shared-mime-info, libthai, libdatrie
-, CoreServices, DarwinTools, cctools, libtool, discount
+, CoreServices, DarwinTools, cctools, libtool, discount, exiv2, libmaxminddb
 }@args:
 
 let
@@ -154,6 +154,10 @@ in
     '';
   };
 
+  exiv2 = attrs: {
+    buildFlags = [ "--with-exiv2-lib=${exiv2}/lib" "--with-exiv2-include=${exiv2.dev}/include" ];
+  };
+
   fog-dnsimple = attrs:
     lib.optionalAttrs (lib.versionOlder attrs.version "1.0.1") {
       postInstall = ''
@@ -414,6 +418,10 @@ in
     '';
   };
 
+  maxmind_geoip2 = attrs: {
+    buildFlags = [ "--with-maxminddb-lib=${libmaxminddb}/lib" "--with-maxminddb-include=${libmaxminddb}/include" ];
+  };
+
   metasploit-framework = attrs: {
     preInstall = ''
       export HOME=$TMPDIR