diff --git a/include/grgsm/decoding/tch_f_decoder.h b/include/grgsm/decoding/tch_f_decoder.h
index efe082c..8dbf68b 100644
--- a/include/grgsm/decoding/tch_f_decoder.h
+++ b/include/grgsm/decoding/tch_f_decoder.h
@@ -62,7 +62,7 @@
        * class. gsm::tch_f_decoder::make is the public interface for
        * creating new instances.
        */
-      static sptr make(tch_mode mode, const std::string &file);
+      static sptr make(tch_mode mode, const std::string &file, bool boundary_check=true);
 
     };