diff --git a/chrome/content/scripts/jasminum.js b/chrome/content/scripts/jasminum.js
index 62098f0..4bb0415 100644
--- a/chrome/content/scripts/jasminum.js
+++ b/chrome/content/scripts/jasminum.js
@@ -111,15 +111,23 @@ Zotero.Jasminum = {
         var ext = filename.substr(filename.length - 3, 3);
         if (ext != "pdf" && ext != "caj") return false;
         return true;
-    },
+    }.bind(Zotero.Jasminum),
 
     splitFilename: function (filename) {
         // Make query parameters from filename
         var prefix = filename.substr(0, filename.length - 4);
         var prefixArr = prefix.split("_");
+        var author = "";
+        var keyword = "";
+        if (prefixArr.length > 1 && prefixArr[prefixArr.length-1].length <=4) {
+            author = prefixArr[prefixArr.length-1];
+            keyword = prefixArr.slice(0, prefixArr.length-1).join(" ");
+        } else {
+            keyword = prefixArr.join(" ");
+        }
         return {
-            author: prefixArr[prefixArr.length - 1],
-            keyword: prefixArr.slice(0, prefixArr.length - 1).join(" "),
+            author: author,
+            keyword: keyword,
         };
     },
 
diff --git a/install.rdf b/install.rdf
index 042c36a..eee5771 100644
--- a/install.rdf
+++ b/install.rdf
@@ -5,7 +5,7 @@
   <Description about="urn:mozilla:install-manifest">
     <em:id>jasminum@linxzh.com</em:id>
     <em:name>Jasminum</em:name>
-    <em:version>0.0.1</em:version>
+    <em:version>0.0.2</em:version>
     <em:type>2</em:type>
     <em:iconURL>chrome://jasminum/skin/icon.png</em:iconURL>
     <em:multiprocessCompatible>true</em:multiprocessCompatible>