extra parens
diff --git a/src/cryptography/hazmat/backends/openssl/backend.py b/src/cryptography/hazmat/backends/openssl/backend.py
index 8b332c5..7625240 100644
--- a/src/cryptography/hazmat/backends/openssl/backend.py
+++ b/src/cryptography/hazmat/backends/openssl/backend.py
@@ -1058,11 +1058,9 @@
         if res == 0:
             errors = self._consume_errors()
             assert errors[0][1:] == (
-                (
-                    self._lib.ERR_LIB_RSA,
-                    self._lib.RSA_F_RSA_SIGN,
-                    self._lib.RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY
-                )
+                self._lib.ERR_LIB_RSA,
+                self._lib.RSA_F_RSA_SIGN,
+                self._lib.RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY
             )
             raise ValueError("Digest too big for RSA key")