diff --git a/moto/packages/httpretty.py b/moto/packages/httpretty.py
index a9bbf8f7..e0bbb404 100644
--- a/moto/packages/httpretty.py
+++ b/moto/packages/httpretty.py
@@ -722,7 +722,7 @@ class URIMatcher(object):
     info = None
 
     def __init__(self, uri, method, entries):
-        if uri.__class__.__name__ == 'SRE_Pattern':
+        if type(uri).__name__ == 'SRE_Pattern':
             self.regex = uri
         else:
             self.info = URIInfo.from_uri(uri, entries)