diff --git a/impeller/archivist/archive.h b/impeller/archivist/archive.h
index c2e2eb7a48184..9c727c9015aaf 100644
--- a/impeller/archivist/archive.h
+++ b/impeller/archivist/archive.h
@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <functional>
 #include <memory>
 #include <optional>
 #include <string>