diff --git a/api/libs/gmpy2_pkcs10aep_cipher.py b/api/libs/gmpy2_pkcs10aep_cipher.py
index c22546f602..9856875c16 100644
--- a/api/libs/gmpy2_pkcs10aep_cipher.py
+++ b/api/libs/gmpy2_pkcs10aep_cipher.py
@@ -48,7 +48,7 @@ class PKCS1OAEP_Cipher:
                 `Crypto.Hash.SHA1` is used.
          mgfunc : callable
                 A mask generation function that accepts two parameters: a string to
-                use as seed, and the lenth of the mask to generate, in bytes.
+                use as seed, and the length of the mask to generate, in bytes.
                 If not specified, the standard MGF1 consistent with ``hashAlgo`` is used (a safe choice).
          label : bytes/bytearray/memoryview
                 A label to apply to this particular encryption. If not specified,
@@ -218,7 +218,7 @@ def new(key, hashAlgo=None, mgfunc=None, label=b'', randfunc=None):
 
     :param mgfunc:
       A mask generation function that accepts two parameters: a string to
-      use as seed, and the lenth of the mask to generate, in bytes.
+      use as seed, and the length of the mask to generate, in bytes.
       If not specified, the standard MGF1 consistent with ``hashAlgo`` is used (a safe choice).
     :type mgfunc: callable