diff --git a/include/wx/webview.h b/include/wx/webview.h
index dfa409c943..265ac24b0a 100644
--- a/include/wx/webview.h
+++ b/include/wx/webview.h
@@ -139,6 +139,7 @@ public:
     {
         m_showMenu = true;
         m_runScriptCount = 0;
+        m_syncScriptResult = 0;
     }
 
     virtual ~wxWebView() {}
diff --git a/src/common/webview.cpp b/src/common/webview.cpp
index 26705805a7..dbf8ed8451 100644
--- a/src/common/webview.cpp
+++ b/src/common/webview.cpp
@@ -229,7 +229,7 @@ bool wxWebView::RunScript(const wxString& javascript, wxString* output) const
 {
     m_syncScriptResult = -1;
     m_syncScriptOutput.clear();
-    RunScriptAsync(javascript, (void*)this);
+    RunScriptAsync(javascript);
 
     // Wait for script exection
     while (m_syncScriptResult == -1)