diff --git a/roles/squid/templates/osism.conf.j2 b/roles/squid/templates/osism.conf.j2
index 2fb4279ac..06bbf1b6c 100644
--- a/roles/squid/templates/osism.conf.j2
+++ b/roles/squid/templates/osism.conf.j2
@@ -2,6 +2,7 @@ cache_mem 128 MB
 minimum_object_size 0 bytes
 maximum_object_size 500 MB
 maximum_object_size_in_memory 512 KB
+max_filedescriptors 1048576
 
 cache_dir ufs /var/spool/squid 100 16 256