diff --git a/WkHtmlToXSharp/NativeCalls.cs b/WkHtmlToXSharp/NativeCalls.cs
old mode 100755
new mode 100644
index 97611a8..8a2d99b
--- a/WkHtmlToXSharp/NativeCalls.cs
+++ b/WkHtmlToXSharp/NativeCalls.cs
@@ -4,7 +4,7 @@
 
 namespace WkHtmlToXSharp
 {
-	internal static class NativeCalls
+	public static class NativeCalls
 	{
 		private const string DLL_NAME = "wkhtmltox0";