diff --git a/openair1/PHY/CODING/TESTBENCH/polartest.c b/openair1/PHY/CODING/TESTBENCH/polartest.c
index ddcc3ce826..108aacd96f 100644
--- a/openair1/PHY/CODING/TESTBENCH/polartest.c
+++ b/openair1/PHY/CODING/TESTBENCH/polartest.c
@@ -142,6 +142,10 @@ int main(int argc, char *argv[]) {
 
   if (polarMessageType == 0) { //PBCH
   } else if (polarMessageType == 1) { //DCI
+    if (aggregation_level != 16 && aggregation_level!=8 && aggregation_level != 4 && aggregation_level !=2 && aggregation_level !=1) {
+      printf("Illegal aggregation level %d\n",aggregation_level);
+      exit(-1);
+    }
     coderLength = 108*aggregation_level; 
   } else if (polarMessageType == -1) { //UCI
     printf("UCI testing not supported yet\n");
diff --git a/openair1/PHY/CODING/nrPolar_tools/nr_polar_procedures.c b/openair1/PHY/CODING/nrPolar_tools/nr_polar_procedures.c
index e78f3a85b7..26832fd70c 100644
--- a/openair1/PHY/CODING/nrPolar_tools/nr_polar_procedures.c
+++ b/openair1/PHY/CODING/nrPolar_tools/nr_polar_procedures.c
@@ -88,7 +88,7 @@ uint32_t nr_polar_output_length(uint16_t K,
   if (n>n_2) n=n_2;
   if (n<n_min) n=n_min;
 
-  /*  printf("nr_polar_output_length: K %d, E %d, n %d (n_max %d,n_min %d, n_1 %d,n_2 %d)\n",
+  /*printf("nr_polar_output_length: K %d, E %d, n %d (n_max %d,n_min %d, n_1 %d,n_2 %d)\n",
 	 K,E,n,n_max,n_min,n_1,n_2);
 	 exit(-1);*/
   return ((uint32_t) pow(2.0,n)); //=polar_code_output_length