diff --git a/kernel/uapi/ethosu.h b/kernel/uapi/ethosu.h
index 35eaf60..8240ad9 100644
--- a/kernel/uapi/ethosu.h
+++ b/kernel/uapi/ethosu.h
@@ -169,7 +169,7 @@
  * @cycle_count:        Count for cycle counter.
  */
 struct ethosu_uapi_pmu_counts {
-	__u32 events[ETHOSU_PMU_EVENT_MAX];
+	__u64 events[ETHOSU_PMU_EVENT_MAX];
 	__u64 cycle_count;
 };