diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 4d42c8d..e4f2a87 100755
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -1411,7 +1411,7 @@
         return( status );
     slot = &global_data.key_slots[key];
 
-    cipher_info = mbedtls_cipher_info_from_psa( alg, key_type, key_bits );
+    cipher_info = mbedtls_cipher_info_from_psa( alg, key_type, key_bits, NULL );
     if( cipher_info == NULL )
         return( PSA_ERROR_NOT_SUPPORTED );