Update README.md
diff --git a/README.md b/README.md
index cdc26ea..3506118 100644
--- a/README.md
+++ b/README.md
@@ -113,7 +113,7 @@
 ======
 The work would be possible without efforts made by many people to build knowledge of GSM. 
 
-The most important ancestor of *gr-gsm* (and *gsm-receiver* of *Airprobe* project) was *gsm-tvoid*. 
+The most important ancestor of *gr-gsm* (and *gsm-receiver* of *Airprobe* project) was *gsm-tvoid* written by Tvoid. 
 
 *Gr-gsm* wouldn't be also possible without help and inspiration by Harald Welte, Dieter Spaar and Sylvain Munaut.