diff --git a/src/tools/bwccmdl.c b/src/tools/bwccmdl.c
index 672d973..31dbb06 100644
--- a/src/tools/bwccmdl.c
+++ b/src/tools/bwccmdl.c
@@ -2951,11 +2951,11 @@ main(int    argc,
               printf("-----------------   Compression Parameters   -----------------\n\n");
               if((control->CSsgc &0x200) != 0)
                 {
-                  printf("  Number of Tiles:               %27d\n",  control->nTiles);
+                  printf("  Number of Tiles:               %27lu\n",  control->nTiles);
                   printf("       - Samples in 1.D:         %27ld\n", control->tileSizeX);
                   printf("       - Samples in 2.D:         %27ld\n", control->tileSizeY);
                   printf("       - Samples in 3.D:         %27ld\n", control->tileSizeZ);
-                  printf("       - Timesteps:              %27d\n",  control->tileSizeTS);
+                  printf("       - Timesteps:              %27lu\n",  control->tileSizeTS);
                   printf("  ..........................................................\n");
                   printf("\n");
                 }
@@ -3219,4 +3219,4 @@ OUT:
   fclose(stderr);
 
   return error_handle;
-}
\ No newline at end of file
+}