diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index e81431deaa50..63fd8aa99af7 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -207,7 +207,7 @@ TRACE_EVENT_RCU(rcu_exp_grace_period,
 		__entry->gpevent = gpevent;
 	),
 
-	TP_printk("%s %ld %s",
+	TP_printk("%s %#lx %s",
 		  __entry->rcuname, __entry->gpseq, __entry->gpevent)
 );