diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index d8c0da5..f16a196 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -21,8 +21,10 @@
 #include "Configuration.h"
 #include <atomic>
 #include <mutex>
+#include <chrono>
 #include <deque>
 #include <map>
+#include <optional>
 #include <set>
 #include <string>
 #include <vector>