diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 0ee140176f10..f5d43920ecd6 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -20,6 +20,7 @@
 #include <linux/seqlock.h>
 #include <linux/timer.h>
 #include <linux/timerqueue.h>
+#include <linux/android_kabi.h>
 
 struct hrtimer_clock_base;
 struct hrtimer_cpu_base;
@@ -124,6 +125,8 @@ struct hrtimer {
 	u8				is_rel;
 	u8				is_soft;
 	u8				is_hard;
+
+	ANDROID_KABI_RESERVE(1);
 };
 
 /**