diff --git a/libos/include/os/File.h b/libos/include/os/File.h
index b4df45a6..5e54b556 100644
--- a/libos/include/os/File.h
+++ b/libos/include/os/File.h
@@ -98,7 +98,7 @@ namespace os
         static SharedPtr<File> standard_error();
 
         /**
-         * @brief Make this File object automatically close on the next call to execve(3).
+         * @brief Make this File object automatically close on the next call to execve(2).
          */
         void set_close_on_exec();