diff --git a/pkgs/applications/networking/mailreaders/claws-mail/default.nix b/pkgs/applications/networking/mailreaders/claws-mail/default.nix
index b6941c4af2c..07141da3571 100644
--- a/pkgs/applications/networking/mailreaders/claws-mail/default.nix
+++ b/pkgs/applications/networking/mailreaders/claws-mail/default.nix
@@ -80,6 +80,8 @@ stdenv.mkDerivation {
     ++ optional (!enablePluginVcalendar) "--disable-vcalendar-plugin"
     ++ optional (!enableSpellcheck) "--disable-enchant";
 
+  enableParallelBuilding = true;
+
   postInstall = ''
     mkdir -p $out/share/applications
     cp claws-mail.desktop $out/share/applications