diff --git a/src/saml2/response.py b/src/saml2/response.py
index fc2071d35..4536da929 100644
--- a/src/saml2/response.py
+++ b/src/saml2/response.py
@@ -409,11 +409,15 @@ def _verify(self):
                 raise RequestVersionTooHigh()
 
         if self.asynchop:
-            if (
-                self.response.destination
-                and self.response.destination not in self.return_addrs
-            ):
-                logger.error("destination '%s' not in return addresses '%s'", self.response.destination, self.return_addrs)
+            if not getattr(self.response, 'destination', None):
+                logger.error(
+                    "Invalid response destination in asynchop"
+                )
+                return None
+            elif self.response.destination not in self.return_addrs:
+                logger.error(
+                    f"{self.response.destination} not in {self.return_addrs}"
+                )
                 return None
 
         valid = self.issue_instant_ok() and self.status_ok()