diff --git a/crmsh/corosync.py b/crmsh/corosync.py
index ff22814817..9c67564625 100644
--- a/crmsh/corosync.py
+++ b/crmsh/corosync.py
@@ -38,7 +38,7 @@
     to_logfile: yes
     logfile: /var/log/cluster/corosync.log
     to_syslog: yes
-    timestamp: on
+    timestamp: hires
 }
 """
 KNET_LINK_NUM_LIMIT = 8
diff --git a/crmsh/log.py b/crmsh/log.py
index 2aca84ace9..81e26962a6 100644
--- a/crmsh/log.py
+++ b/crmsh/log.py
@@ -215,8 +215,8 @@ def _open(self):
             },
         },
         "file": {
-            "format": "%(asctime)s {} %(name)s: %(levelname)s: %(message)s".format(socket.gethostname()),
-            "datefmt": "%Y-%m-%dT%H:%M:%S%z",
+            "format": "%(asctime)s.%(msecs)03d {} %(name)s: %(levelname)s: %(message)s".format(socket.gethostname()),
+            "datefmt": "%b %d %H:%M:%S",
         }
     },
     "filters": {