diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 3181e989aad7..1e9e5b177519 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -22,6 +22,7 @@
 #include <linux/percpu.h>
 #include <linux/timer.h>
 #include <linux/timerqueue.h>
+#include <linux/android_kabi.h>
 
 struct hrtimer_clock_base;
 struct hrtimer_cpu_base;
@@ -115,6 +116,8 @@ struct hrtimer {
 	u8				state;
 	u8				is_rel;
 	u8				is_soft;
+
+	ANDROID_KABI_RESERVE(1);
 };
 
 /**