diff --git a/targets/RT/USER/lte-uesoftmodem.c b/targets/RT/USER/lte-uesoftmodem.c
index 03283beb98..0c461e5198 100644
--- a/targets/RT/USER/lte-uesoftmodem.c
+++ b/targets/RT/USER/lte-uesoftmodem.c
@@ -474,7 +474,7 @@ static void get_options(void) {
   int CC_id;
   int tddflag, nonbiotflag;
   char *loopfile=NULL;
-  int dumpframe;
+  int dumpframe=0;
   uint32_t online_log_messages;
   uint32_t glog_level;
   uint32_t start_telnetsrv;