diff --git a/cryptography/hazmat/primitives/kdf/pbkdf2.py b/cryptography/hazmat/primitives/kdf/pbkdf2.py
index 27f9c7e..1cc35f6 100644
--- a/cryptography/hazmat/primitives/kdf/pbkdf2.py
+++ b/cryptography/hazmat/primitives/kdf/pbkdf2.py
@@ -29,8 +29,6 @@
             )
         self._called = False
         self.algorithm = algorithm
-        if length > 2**31 - 1:
-            raise ValueError("Requested length too large.")
         self._length = length
         self._salt = salt
         self.iterations = iterations
diff --git a/tests/hazmat/primitives/test_pbkdf2.py b/tests/hazmat/primitives/test_pbkdf2.py
index 6dd1012..4d15d7a 100644
--- a/tests/hazmat/primitives/test_pbkdf2.py
+++ b/tests/hazmat/primitives/test_pbkdf2.py
@@ -57,7 +57,3 @@
         kdf = PBKDF2(hashes.SHA1(), 20, b"salt", 10, default_backend())
         with pytest.raises(InvalidKey):
             kdf.verify(b"password2", key)
-
-    def test_salt_too_long(self):
-        with pytest.raises(ValueError):
-            PBKDF2(hashes.SHA1(), 2**31, b"salt", 10, default_backend())