diff --git a/2bit.py b/2bit.py
index 7b94bc0..71abda5 100644
--- a/2bit.py
+++ b/2bit.py
@@ -33,7 +33,7 @@ if use_non_random_dither:
     counter_max = int(args[args.index("--non-random-dither") + 1])
     if not dither:
         dither = auto_dither(bits)
-        print("Non-random dither has no effect if dither is disabled. Guessing you want "+format_dither(dither)+"% dither")
+        print("Non-random dither has no effect if dither is disabled. Guessing you want "+format_dither(dither)+" dither")
 def binprecision(start, bits, length):
     end = bin(int(start))[2:]
     while len(end) < bits:
diff --git a/test/run.py b/test/run.py
index 57f3693..f026c30 100644
--- a/test/run.py
+++ b/test/run.py
@@ -41,6 +41,7 @@ for f in files:
         for dither in [False, "15", "50", "auto"]:
             for nonrandom in [False, "7", "10"]:
                 for percolor in [False, True]:
+                    if nonrandom and not dither: continue
                     i += 1
                     run(bits, percolor, dither, nonrandom)
                     print(str(int(float(1000*i)/max_i)/10) + "% done")