diff --git a/lib/platform/CXWindowsScreen.cpp b/lib/platform/CXWindowsScreen.cpp
index 1dffd054..12b1d703 100644
--- a/lib/platform/CXWindowsScreen.cpp
+++ b/lib/platform/CXWindowsScreen.cpp
@@ -1740,7 +1740,7 @@ CXWindowsScreen::mapButtonToX(ButtonID id) const
 	}
 
 	// map button
-	return static_cast<unsigned int>(m_buttons[id - 1]);
+	return static_cast<unsigned int>(id);
 }
 
 void