diff --git a/synapse-module/nginx.nix b/synapse-module/nginx.nix
index 58b0e20..3d1ff9f 100644
--- a/synapse-module/nginx.nix
+++ b/synapse-module/nginx.nix
@@ -154,6 +154,9 @@ in
       in if fedReceivers != [ ] then 
         lib.genAttrs socketAddresses (_: { })
     else config.services.nginx.upstreams.synapse_master.servers;
+    extraConfig = ''
+      ip_hash;
+    '';
   };