diff --git a/services/core/java/com/android/server/appop/HistoricalRegistry.java b/services/core/java/com/android/server/appop/HistoricalRegistry.java
index 6f3526f..dbd47d0 100644
--- a/services/core/java/com/android/server/appop/HistoricalRegistry.java
+++ b/services/core/java/com/android/server/appop/HistoricalRegistry.java
@@ -54,13 +54,13 @@
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.os.AtomicDirectory;
-import com.android.internal.os.BackgroundThread;
 import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.XmlUtils;
 import com.android.internal.util.function.pooled.PooledLambda;
 import com.android.modules.utils.TypedXmlPullParser;
 import com.android.modules.utils.TypedXmlSerializer;
 import com.android.server.FgThread;
+import com.android.server.IoThread;
 
 import org.xmlpull.v1.XmlPullParserException;
 
@@ -669,7 +669,7 @@
     }
 
     private void clearHistoryOnDiskDLocked() {
-        BackgroundThread.getHandler().removeMessages(MSG_WRITE_PENDING_HISTORY);
+        IoThread.getHandler().removeMessages(MSG_WRITE_PENDING_HISTORY);
         synchronized (mInMemoryLock) {
             mCurrentHistoricalOps = null;
             mNextPersistDueTimeMillis = System.currentTimeMillis();
@@ -745,7 +745,7 @@
 
     private void persistPendingHistory(@NonNull List<HistoricalOps> pendingWrites) {
         synchronized (mOnDiskLock) {
-            BackgroundThread.getHandler().removeMessages(MSG_WRITE_PENDING_HISTORY);
+            IoThread.getHandler().removeMessages(MSG_WRITE_PENDING_HISTORY);
             if (pendingWrites.isEmpty()) {
                 return;
             }
@@ -767,7 +767,7 @@
         final Message message = PooledLambda.obtainMessage(
                 HistoricalRegistry::persistPendingHistory, HistoricalRegistry.this);
         message.what = MSG_WRITE_PENDING_HISTORY;
-        BackgroundThread.getHandler().sendMessage(message);
+        IoThread.getHandler().sendMessage(message);
         mPendingWrites.offerFirst(ops);
     }