diff --git a/grc/decoding/gsm_tch_f_decoder.xml b/grc/decoding/gsm_tch_f_decoder.xml
index 632162f..b15d55f 100644
--- a/grc/decoding/gsm_tch_f_decoder.xml
+++ b/grc/decoding/gsm_tch_f_decoder.xml
@@ -59,7 +59,7 @@
   <param>
     <name>Voice boundary detection</name>
     <key>boundary_check</key>
-    <value>True</value>
+    <value>False</value>
     <type>bool</type>
     <option>
       <name>False</name>