fix spelling error
diff --git a/src/cryptography/hazmat/backends/interfaces.py b/src/cryptography/hazmat/backends/interfaces.py
index 6feb810..7980890 100644
--- a/src/cryptography/hazmat/backends/interfaces.py
+++ b/src/cryptography/hazmat/backends/interfaces.py
@@ -237,7 +237,7 @@
     @abc.abstractmethod
     def load_der_private_key(self, data, password):
         """
-        Loads a priate key from DER encoded data. Uses the provided password
+        Loads a private key from DER encoded data. Uses the provided password
         if the data is encrypted.
         """