diff --git a/crawl4ai/content_filter_strategy.py b/crawl4ai/content_filter_strategy.py
index 50baed276..d6d24ecbd 100644
--- a/crawl4ai/content_filter_strategy.py
+++ b/crawl4ai/content_filter_strategy.py
@@ -768,11 +768,11 @@ def _compute_class_id_weight(self, node):
         class_id_score = 0
         if "class" in node.attrs:
             classes = " ".join(node["class"])
-            if self.negative_patterns.match(classes):
+            if self.negative_patterns.search(classes):
                 class_id_score -= 0.5
         if "id" in node.attrs:
             element_id = node["id"]
-            if self.negative_patterns.match(element_id):
+            if self.negative_patterns.search(element_id):
                 class_id_score -= 0.5
         return class_id_score