diff --git a/wrap/io_trimesh/additionalinfo.h b/wrap/io_trimesh/additionalinfo.h
new file mode 100644
index 00000000..0ec15757
--- /dev/null
+++ b/wrap/io_trimesh/additionalinfo.h
@@ -0,0 +1,20 @@
+#ifndef __VCGLIB_ADDITIONAL_INFO
+#define __VCGLIB_ADDITIONAL_INFO
+
+class AdditionalInfo
+{
+protected:
+	AdditionalInfo()
+	{
+	}
+public:
+	unsigned int numvert;
+	unsigned int numface;
+	int mask;
+
+	virtual ~AdditionalInfo()
+	{
+	}
+};
+
+#endif
\ No newline at end of file