1 files changed, 3 insertions, 1 deletions
diff --git a/src/Readability.php b/src/Readability.php
index b443fd1..87af283 100644
--- a/src/Readability.php
+++ b/src/Readability.php
@@ -1814,7 +1814,9 @@ class Readability
             }
         }
 
-        $this->_cleanClasses($article);
+        if (!$this->configuration->getKeepClasses()) {
+            $this->_cleanClasses($article);
+        }
 
         return $article;
     }