diff --git a/src/js/logs.js b/src/js/logs.js
index 0b87e2e5c..014b7b581 100644
--- a/src/js/logs.js
+++ b/src/js/logs.js
@@ -72,7 +72,8 @@ app.controller('LogsController', ['$scope', 'Client', function ($scope, Client)
                 var autoScroll = tmp[0].scrollTop > (tmp[0].scrollHeight - tmp.innerHeight() - 24);
 
                 var logLine = $('<div class="log-line">');
-                var timeString = moment.utc(data.realtimeTimestamp/1000).format('MMM DD HH:mm:ss');
+                // realtimeTimestamp is 0 if line is blank or some parse error
+                var timeString = data.realtimeTimestamp ? moment(data.realtimeTimestamp/1000).format('MMM DD HH:mm:ss') : '';
                 logLine.html('<span class="time">' + timeString + ' </span>' + window.ansiToHTML(escapeHtml(typeof data.message === 'string' ? data.message : ab2str(data.message))));
                 tmp.append(logLine);