diff --git a/rules/application/rpc_firewall/rpc_firewall_eventlog_recon.yml b/rules/application/rpc_firewall/rpc_firewall_eventlog_recon.yml
index bd69dc768..34e136a6f 100644
--- a/rules/application/rpc_firewall/rpc_firewall_eventlog_recon.yml
+++ b/rules/application/rpc_firewall/rpc_firewall_eventlog_recon.yml
@@ -5,7 +5,6 @@ description: Detects remote RPC calls to get event log information via EVEN or E
 references:
     - https://attack.mitre.org/tactics/TA0007/
     - https://github.com/zeronetworks/rpcfirewall
-    - https://github.com/zeronetworks/rpcfirewall
     - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/
 author: Sagie Dulce, Dekel Paz
 date: 2022/01/01