diff --git a/src/index.js b/src/index.js
index 9e94b57..dcd58b6 100644
--- a/src/index.js
+++ b/src/index.js
@@ -4,6 +4,7 @@ const audioExtensions =['mp3', 'ogg', 'wav', 'flac'];
 
 const invalidFileNameCharsRe  =/[\\/\|:\*\?"<>]/;   // dont allow \/|:*?<>
 const invalidFileNameChars = "\\/|:*?<>";
+const splitFilePathRe = /(.*\/)?([^/]*?)(\.[^/.]+)?$/;
 
 const mappings = new Map(JSON.parse(localStorage.getItem('mappings')) || []);
 let statusLine = document.getElementById('status');
@@ -194,6 +195,7 @@ function setCurrentFile() {
     }
     // else if (currentFileIdx < fileList.length) {
     // }
+  // st:
     else if (currentFileIdx >= fileList.length) {
         currentFileIdx = fileList.length - 1;
     }
@@ -208,7 +210,7 @@ function setCurrentFile() {
     }
     
     // set filename in input field
-    const fileNameNoExt = currentFile.replace(/\.[^/.]+$/, "");
+  const fileNameNoExt = currentFile.replace(splitFilePathRe, "$2");
     document.getElementById('filename').value = fileNameNoExt;
 
     renderCurrentFile();