diff --git a/targets/RT/USER/lte-ru.c b/targets/RT/USER/lte-ru.c
index 47d609c849..67682a3643 100644
--- a/targets/RT/USER/lte-ru.c
+++ b/targets/RT/USER/lte-ru.c
@@ -1879,7 +1879,7 @@ void *ru_thread_synch(void *arg) {
       else {
         write_output("ru_sync.m","sync",(void*)&sync_corr[0],fp->samples_per_tti*5,1,2);
         write_output("ru_rx.m","rxs",(void*)ru->common.rxdata[0],fp->samples_per_tti*10,1,1);
-        //exit(1); 
+        exit(1); 
      }
     } // ru->in_synch==0