diff --git a/Pod/Classes/PTPopupWebView.swift b/Pod/Classes/PTPopupWebView.swift
index aeb2624..03a97f7 100644
--- a/Pod/Classes/PTPopupWebView.swift
+++ b/Pod/Classes/PTPopupWebView.swift
@@ -469,7 +469,7 @@ open class PTPopupWebView : UIView {
     }
     
     /// Close popup view
-    open func close() {
+    @objc open func close() {
         if let delegate = delegate {
             // if delegate != nil (ex. when use PTPopupWebViewContoller)
             delegate.close()
@@ -481,7 +481,7 @@ open class PTPopupWebView : UIView {
     }
     
     
-    internal func buttonTapped (_ sender: AnyObject) {
+    @objc internal func buttonTapped (_ sender: AnyObject) {
         if let button = sender as? UIButton, let index = buttons.index(of: button) {
             if index < buttonSettings.count {
                 let buttonSetting = buttonSettings[index]