diff --git a/frontend/lightningTip.js b/frontend/lightningTip.js
index 0805dd3..2a1c796 100644
--- a/frontend/lightningTip.js
+++ b/frontend/lightningTip.js
@@ -8,6 +8,14 @@ var qrCode;
 
 var defaultGetInvoice;
 
+// Fixes weird bug which moved the button up one pixel when its content was changed
+window.onload = function () {
+    var button = document.getElementById("lightningTipGetInvoice");
+
+    button.style.height = button.clientHeight + "px";
+    button.style.width = button.clientWidth + "px";
+};
+
 // TODO: maybe don't show full invoice
 // TODO: show price in dollar?
 function getInvoice() {
@@ -85,9 +93,6 @@ function getInvoice() {
 
                 var button = document.getElementById("lightningTipGetInvoice");
 
-                button.style.height = button.clientHeight + "px";
-                button.style.width = button.clientWidth + "px";
-
                 defaultGetInvoice = button.innerHTML;
 
                 button.innerHTML = "<div class='spinner'></div>";