diff --git a/lib/krb5/krb5_locl.h b/lib/krb5/krb5_locl.h
index 0e87099e7..769a0df3b 100644
--- a/lib/krb5/krb5_locl.h
+++ b/lib/krb5/krb5_locl.h
@@ -90,6 +90,7 @@ krb5_error_code
 krb5_decrypt (krb5_context context,
 	      void *ptr,
 	      size_t len,
+	      int etype,
 	      const krb5_keyblock *keyblock,
 	      krb5_data *result);