diff --git a/Gurux.DLMS.python/gurux_dlms/ecdsa/GXEcdsa.py b/Gurux.DLMS.python/gurux_dlms/ecdsa/GXEcdsa.py
index 4180fcf..653020a 100644
--- a/Gurux.DLMS.python/gurux_dlms/ecdsa/GXEcdsa.py
+++ b/Gurux.DLMS.python/gurux_dlms/ecdsa/GXEcdsa.py
@@ -98,7 +98,7 @@ def sign(self, data):
             raise ValueError("Invalid private key.")
         if self.__privateKey.scheme == Ecc.P256:
             h = hashlib.sha256()
-        elif self.__privateKey.scheme == Ecc.P256:
+        elif self.__privateKey.scheme == Ecc.P384:
             h = hashlib.sha384()
         else:
             raise ValueError("Invalid private key scheme.")
@@ -184,7 +184,7 @@ def verify(self, signature, data):
 
         if self.__publicKey.scheme == Ecc.P256:
             h = hashlib.sha256()
-        elif self.__publicKey.scheme == Ecc.P256:
+        elif self.__publicKey.scheme == Ecc.P384:
             h = hashlib.sha384()
         else:
             raise ValueError("Invalid private key scheme.")