diff --git a/legacy/evas/m4/ac_attribute.m4 b/legacy/evas/m4/ac_attribute.m4
index 3926d23d56..04bf5f2a49 100644
--- a/legacy/evas/m4/ac_attribute.m4
+++ b/legacy/evas/m4/ac_attribute.m4
@@ -39,8 +39,9 @@ AC_MSG_RESULT($ac_cv___attribute__)
 if test "x${ac_cv___attribute__}" = "xyes" ; then
    AC_DEFINE([HAVE___ATTRIBUTE__], [1], [Define to 1 if your compiler has __attribute__])
    AC_DEFINE([__UNUSED__], [__attribute__((unused))], [Macro declaring a function argument to be unused])
+   AC_DEFINE([__PACKED__], [__attribute__((packed))], [Macro declaring a function argument to be unused])
   else
-    AC_DEFINE([__UNUSED__], [], [Macro declaring a function argument to be unused])
+    AC_DEFINE([__PACKED__], [], [Macro declaring a function argument to be unused])
 fi
 
 ])
diff --git a/legacy/evas/src/lib/canvas/evas_async_events.c b/legacy/evas/src/lib/canvas/evas_async_events.c
index bba70721f5..0b92e482b1 100644
--- a/legacy/evas/src/lib/canvas/evas_async_events.c
+++ b/legacy/evas/src/lib/canvas/evas_async_events.c
@@ -21,7 +21,7 @@ struct _Evas_Event_Async
    void			 *event_info;
    void			(*func)(void *target, Evas_Callback_Type type, void *event_info);
    Evas_Callback_Type	  type;
-};
+} __PACKED__ ;
 
 #endif