diff --git a/adb_utils.h b/adb_utils.h
index 537d0e4..388d7dd 100644
--- a/adb_utils.h
+++ b/adb_utils.h
@@ -19,6 +19,8 @@
 
 #include <string>
 
+void close_stdin();
+
 bool getcwd(std::string* cwd);
 bool directory_exists(const std::string& path);