diff --git a/fastboot/fastboot_driver.h b/fastboot/fastboot_driver.h
index 3d6c7b017..6ac26ce31 100644
--- a/fastboot/fastboot_driver.h
+++ b/fastboot/fastboot_driver.h
@@ -28,6 +28,7 @@
 #pragma once
 #include <cstdlib>
 #include <deque>
+#include <functional>
 #include <limits>
 #include <string>
 #include <vector>