diff --git a/sslyze/connection_helpers/tls_connection.py b/sslyze/connection_helpers/tls_connection.py
index 60963349..49631dec 100644
--- a/sslyze/connection_helpers/tls_connection.py
+++ b/sslyze/connection_helpers/tls_connection.py
@@ -315,7 +315,7 @@ def connect(self, should_retry_connection: bool = True) -> None:
             )
         except OSError as e:
             # OSError is the parent of all (non-TLS) socket/connection errors so it should be last
-            if "Nassl SSL handshake failed" in e.args[0]:
+            if "Nassl SSL handshake failed" in str(e.args):
                 # Special error returned by nassl
                 raise ServerRejectedTlsHandshake(
                     server_location=self._server_location,