diff --git a/test/lib/colorer.py b/test/lib/colorer.py
index 643ea87d20a1c1fe84961b317b3092011c34ef5a..e46517441c2ebe35e97d732442093cfe7d3b3cb7 100644
--- a/test/lib/colorer.py
+++ b/test/lib/colorer.py
@@ -175,6 +175,8 @@ class Colorer(object):
                 self.write(i, schema='diff_out')
             elif i.startswith('@'):
                 self.write(i, schema='diff_mark')
+            else:
+                self.write(i)
 
     def flush(self):
         return self.stdout.flush()