diff --git a/sources/ewol/context/MacOs/Context.h b/sources/ewol/context/MacOs/Context.h
index 63821b50..5ad2c5a7 100644
--- a/sources/ewol/context/MacOs/Context.h
+++ b/sources/ewol/context/MacOs/Context.h
@@ -11,7 +11,8 @@
 
 #include <ewol/key/key.h>
 
-IOs	// return true if a flush is needed
+namespace MacOs	{
+	// return true if a flush is needed
 	bool draw(bool _displayEveryTime);
 	/**
 	 * @brief The OS inform that the current windows has change his size.