diff --git a/lib/etcd3 b/lib/etcd3
index 26d07fd..c65a522 100644
--- a/lib/etcd3
+++ b/lib/etcd3
@@ -46,6 +46,9 @@
         cmd+=" --listen-peer-urls http://0.0.0.0:$ETCD_PEER_PORT "
     fi
     cmd+=" --listen-client-urls http://$SERVICE_HOST:$ETCD_PORT"
+    if [ "$ENABLE_DEBUG_LOG_LEVEL" == "True" ]; then
+        cmd+=" --debug"
+    fi
 
     local unitfile="$SYSTEMD_DIR/$ETCD_SYSTEMD_SERVICE"
     write_user_unit_file $ETCD_SYSTEMD_SERVICE "$cmd" "" "root"