diff --git a/openair2/RRC/LITE/MESSAGES/asn1_msg_NB_IoT.c b/openair2/RRC/LITE/MESSAGES/asn1_msg_NB_IoT.c
index 7f67998fc3e73930de65555b19d839a12d440a4d..db740d78b32c69ffaa8e434fb320f2e4516c9078 100644
--- a/openair2/RRC/LITE/MESSAGES/asn1_msg_NB_IoT.c
+++ b/openair2/RRC/LITE/MESSAGES/asn1_msg_NB_IoT.c
@@ -361,7 +361,7 @@ uint8_t do_SIB1_NB_IoT(uint8_t Mod_id, int CC_id,
 
   //FIXME which value chose for the following parameter
   (*sib1_NB_IoT)->si_WindowLength_r13=SystemInformationBlockType1_NB__si_WindowLength_r13_ms160;
-  (*sib1_NB_IoT)->si_RadioFrameOffset_r13= 1;
+  (*sib1_NB_IoT)->si_RadioFrameOffset_r13= 0;
 
   /////optional parameters, decide to use at future
   /*