diff --git a/binder/android/os/IVold.aidl b/binder/android/os/IVold.aidl
index aee75f5..9508d91 100644
--- a/binder/android/os/IVold.aidl
+++ b/binder/android/os/IVold.aidl
@@ -68,7 +68,8 @@
     void abortIdleMaint(IVoldTaskListener listener);
     int getStorageLifeTime();
     void setGCUrgentPace(int neededSegments, int minSegmentThreshold,
-                         float dirtyReclaimRate, float reclaimWeight);
+                         float dirtyReclaimRate, float reclaimWeight,
+                         int gcPeriod);
     void refreshLatestWrite();
     int getWriteAmount();