diff --git a/noekeon.c b/noekeon.c
index f5f5299..8a4c23a 100644
--- a/noekeon.c
+++ b/noekeon.c
@@ -93,9 +93,9 @@ void noekeon_round(uint32_t* key, uint32_t* state, uint8_t const1, uint8_t const
 	((uint8_t*)state)[RC_POS] ^= const1;
 	theta(key, state);
 	((uint8_t*)state)[RC_POS] ^= const2;
+	pi1(state);
 	gamma(state);
 	pi2(state);
-	pi1(state);
 }
 
 uint8_t rc_tab[]
diff --git a/twister-big.c b/twister-big.c
index 5139bdc..b0a6fd3 100644
--- a/twister-big.c
+++ b/twister-big.c
@@ -1,4 +1,21 @@
 /* twister-big.c */
+/*
+    This file is part of the Crypto-avr-lib/microcrypt-lib.
+    Copyright (C) 2008  Daniel Otte (daniel.otte@rub.de)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
 
 #include <stdint.h>
 #include <string.h>