diff --git a/src/system/modules/bitcoin/modules/clightning/config/lightning.conf b/src/system/modules/bitcoin/modules/clightning/config/lightning.conf
index b1e0280..def24ec 100644
--- a/src/system/modules/bitcoin/modules/clightning/config/lightning.conf
+++ b/src/system/modules/bitcoin/modules/clightning/config/lightning.conf
@@ -10,6 +10,7 @@ plugin-dir=/var/lib/clightning/plugins
 
 log-file=/var/lib/clightning/lightningd.log
 log-level=info
+rpc-file-mode=0660
 
 # Bind RPC locally only
 bind-addr=127.0.0.1:9736