diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
index 0c9e151..3200c2f 100644
--- a/CONTRIBUTORS.txt
+++ b/CONTRIBUTORS.txt
@@ -15,4 +15,5 @@ Contributors (by order of appearance) :
 - David Cramer
 - Peter Teichman
 - Oleg Broytman
-- Marc Labbé
+- Marc Labbé
+- Bruno Miguel Custódio
diff --git a/flake8/util.py b/flake8/util.py
index 8f1877d..c9a6a75 100644
--- a/flake8/util.py
+++ b/flake8/util.py
@@ -5,7 +5,7 @@ import os
 
 def skip_warning(warning, ignore=[]):
     # XXX quick dirty hack, just need to keep the line in the warning
-    if not hasattr(warning, message):
+    if not hasattr(warning, 'message'):
         # McCabe's warnings cannot be skipped afaik, and they're all strings.
         return False
     if warning.message.split()[0] in ignore: