diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 0152b86..34bead7 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -68,7 +68,7 @@
 
 #undef DEFINE_EVENT
 #define DEFINE_EVENT(template, name, proto, args)	\
-	static struct ftrace_event_call			\
+	static struct ftrace_event_call	__used		\
 	__attribute__((__aligned__(4))) event_##name
 
 #undef DEFINE_EVENT_PRINT