diff --git a/debian/ngcp-rtpengine-daemon.default b/debian/ngcp-rtpengine-daemon.default
index 3d2f084a3..ad78257d4 100644
--- a/debian/ngcp-rtpengine-daemon.default
+++ b/debian/ngcp-rtpengine-daemon.default
@@ -23,6 +23,7 @@ TABLE=0
 # REDIS_WRITE_DB=1
 # REDIS_WRITE_AUTH_PW=foobar
 # REDIS_NUM_THREADS=8
+# REDIS_EXPIRE=86400
 # NO_REDIS_REQUIRED=yes
 # B2B_URL=http://127.0.0.1:8090/
 # LOG_LEVEL=6