diff --git a/proxy.pac b/proxy.pac
index 036f2bf..b6355ba 100644
--- a/proxy.pac
+++ b/proxy.pac
@@ -46,7 +46,8 @@ function FindProxyForURL(url, host) {
         "*.redgifs.com", "redgifs.com",
         "deloitte.com", "*.deloitte.com",
         "pwc.com", "*.pwc.com",
-        "securitytrails.com", "*.securitytrails.com"
+        "securitytrails.com", "*.securitytrails.com",
+        "collaboraoffice.com", "*.collaboraoffice.com"
     ];
 
     var googleDomains = [