diff --git a/src/main.js b/src/main.js
index 273f3e4..9cf3fc6 100644
--- a/src/main.js
+++ b/src/main.js
@@ -605,6 +605,12 @@ privateTgl.addEventListener('click', () => {
 privateKeyInput.value = localStorage.getItem('private_key');
 pubKeyInput.value = localStorage.getItem('pub_key');
 
+privateKeyInput.addEventListener('paste', (event) => {
+  if (!pubKeyInput.value && event.clipboardData) {
+    pubKeyInput.value = getPublicKey(event.clipboardData.getData('text'));
+  }
+});
+
 document.body.addEventListener('click', (e) => {
   const container = e.target.closest('[data-append]');
   if (container) {