diff --git a/services/audioflinger/PatchCommandThread.h b/services/audioflinger/PatchCommandThread.h
index aa5d76e..6cf0505 100644
--- a/services/audioflinger/PatchCommandThread.h
+++ b/services/audioflinger/PatchCommandThread.h
@@ -15,9 +15,9 @@
 ** limitations under the License.
 */
 
-#ifndef INCLUDING_FROM_AUDIOFLINGER_H
-    #error This header file should only be included from AudioFlinger.h
-#endif
+#pragma once
+
+namespace android {
 
 class Command;
 
@@ -121,3 +121,5 @@
     std::mutex mListenerLock;
     std::vector<wp<PatchCommandListener>> mListeners GUARDED_BY(mListenerLock);
 };
+
+}  // namespace android