diff --git a/plone/recipe/codeanalysis/deprecated_aliases.py b/plone/recipe/codeanalysis/deprecated_aliases.py
index 937c7a0..6522d89 100644
--- a/plone/recipe/codeanalysis/deprecated_aliases.py
+++ b/plone/recipe/codeanalysis/deprecated_aliases.py
@@ -66,9 +66,9 @@ def _code_analysis_deprecated_aliases_lines_parser(lines, file_path):
         if line.find('# noqa') != -1:
             continue
 
-        if hasattr(deprecated_aliases, 'iteritems'):
+        try:
             deprecated_aliases_iteritems = deprecated_aliases.iteritems()
-        else:
+        except AttributeError:
             deprecated_aliases_iteritems = deprecated_aliases.items()  # PY3
         for newer_version, old_alias in deprecated_aliases_iteritems:
             for alias in old_alias: