diff --git a/openbsc/src/libbsc/system_information.c b/openbsc/src/libbsc/system_information.c
index 1f1d81e..bf20394 100644
--- a/openbsc/src/libbsc/system_information.c
+++ b/openbsc/src/libbsc/system_information.c
@@ -932,7 +932,7 @@
 	si6->cell_options = bts->si_common.cell_options;
 	si6->ncc_permitted = bts->si_common.ncc_permitted;
 	/* allow/disallow DTXu */
-	gsm48_set_dtx(&si6->cell_options, bts->dtxu, bts->dtxu, true);
+	gsm48_set_dtx(&si6->cell_options, bts->dtxu, bts->dtxu, false);
 
 	/* SI6 Rest Octets: 10.5.2.35a: PCH / NCH info, VBS/VGCS options */