diff --git a/package.json b/package.json
index 788437f4..324fc715 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "author": "Calvin Montgomery",
   "name": "CyTube",
   "description": "Online media synchronizer and chat",
-  "version": "3.63.0",
+  "version": "3.63.1",
   "repository": {
     "url": "http://github.com/calzoneman/sync"
   },
diff --git a/src/channel/playlist.js b/src/channel/playlist.js
index 257042b2..1f8c14df 100644
--- a/src/channel/playlist.js
+++ b/src/channel/playlist.js
@@ -935,6 +935,11 @@ PlaylistModule.prototype._addItem = function (media, data, user, cb) {
         return;
     }
 
+    if (isNaN(media.seconds)) {
+        LOGGER.warn("Detected NaN duration for %j", media);
+        return qfail("Internal error: could not determine media duration");
+    }
+
     if (data.maxlength > 0 && media.seconds > data.maxlength) {
         return qfail("Video exceeds the maximum length set by the channel admin: " +
                      data.maxlength + " seconds");