diff --git a/openair1/SIMULATION/NR_PHY/dlsim.c b/openair1/SIMULATION/NR_PHY/dlsim.c
index aa83b3e32c..d53041aa74 100644
--- a/openair1/SIMULATION/NR_PHY/dlsim.c
+++ b/openair1/SIMULATION/NR_PHY/dlsim.c
@@ -277,7 +277,7 @@ int main(int argc, char **argv)
   //float psnr;
   float eff_tp_check = 0.7;
   uint8_t snrRun;
-  uint32_t TBS;
+  uint32_t TBS = 0;
   int **txdata;
   double **s_re,**s_im,**r_re,**r_im;
   //double iqim = 0.0;