diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h
index 1e8fabb..e499863b 100644
--- a/include/trace/events/skb.h
+++ b/include/trace/events/skb.h
@@ -1,12 +1,12 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM skb
+
 #if !defined(_TRACE_SKB_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_SKB_H
 
 #include <linux/skbuff.h>
 #include <linux/tracepoint.h>
 
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM skb
-
 /*
  * Tracepoint for free an sk_buff:
  */