diff --git a/kernel/sched_clock.c b/kernel/sched_clock.c
index 3c696db59452..ed5a8c415046 100644
--- a/kernel/sched_clock.c
+++ b/kernel/sched_clock.c
@@ -256,3 +256,4 @@ unsigned long long cpu_clock(int cpu)
 
 	return clock;
 }
+EXPORT_SYMBOL_GPL(cpu_clock);