diff --git a/libmodprobe/include/exthandler/exthandler.h b/libmodprobe/include/exthandler/exthandler.h
index 232aa95..a619f81 100644
--- a/libmodprobe/include/exthandler/exthandler.h
+++ b/libmodprobe/include/exthandler/exthandler.h
@@ -17,6 +17,7 @@
 #pragma once
 #include <android-base/result.h>
 #include <string>
+#include <sys/types.h>
 
 android::base::Result<std::string> RunExternalHandler(
         const std::string& handler, uid_t uid, gid_t gid,