diff --git a/targets/RT/USER/lte-uesoftmodem.c b/targets/RT/USER/lte-uesoftmodem.c
index ff7aeb195479cf5d781c6e0ac83cdb439514ec8f..4ad51678ba6097523984d009c93071e3238227cf 100644
--- a/targets/RT/USER/lte-uesoftmodem.c
+++ b/targets/RT/USER/lte-uesoftmodem.c
@@ -316,13 +316,13 @@ extern int16_t dlsch_demod_shift;
 
 static void get_options(void) {
   int CC_id;
-  int tddflag;
-  char *loopfile=NULL;
+  int tddflag = 0;
+  char *loopfile = NULL;
 
-  int dumpframe=0;
-  int timingadv;
-  uint8_t nfapi_mode;
-  int simL1flag ;
+  int dumpframe = 0;
+  int timingadv = 0;
+  uint8_t nfapi_mode = NFAPI_MONOLITHIC;
+  int simL1flag = 0;
 
   set_default_frame_parms(frame_parms);
   CONFIG_SETRTFLAG(CONFIG_NOEXITONHELP);