diff --git a/src/app/ui/copy-to-clipboard.js b/src/app/ui/copy-to-clipboard.js
index 869dfd53c5..5a8313bff9 100644
--- a/src/app/ui/copy-to-clipboard.js
+++ b/src/app/ui/copy-to-clipboard.js
@@ -29,7 +29,7 @@ module.exports = function copyToClipboard (getContent) {
         }
       } catch (e) {}
       copy(copiableContent)
-      addTooltip(event, 'Successfully copied!')
+      addTooltip('Successfully copied!')
     }
   }
   return copyIcon
diff --git a/src/app/ui/tooltip.js b/src/app/ui/tooltip.js
index 0f58d70ae1..402b90450c 100644
--- a/src/app/ui/tooltip.js
+++ b/src/app/ui/tooltip.js
@@ -38,7 +38,7 @@ var css = csjs`
   }
 `
 
-module.exports = function addTooltip (event, tooltipText) {
+module.exports = function addTooltip (tooltipText) {
   var tooltip = yo`<div class=${css.tooltip}>${tooltipText}</div>`
   document.body.appendChild(tooltip)
   setTimeout(function () {