diff --git a/core/dev/cc2420-aes.c b/core/dev/cc2420-aes.c
index 876632d58..5ef7ad4ed 100644
--- a/core/dev/cc2420-aes.c
+++ b/core/dev/cc2420-aes.c
@@ -28,7 +28,7 @@
  *
  * This file is part of the Contiki operating system.
  *
- * $Id: cc2420-aes.c,v 1.1 2008/07/02 08:46:13 adamdunkels Exp $
+ * $Id: cc2420-aes.c,v 1.2 2008/07/02 09:02:39 nifi Exp $
  */
 
 /**
@@ -79,7 +79,7 @@ cipher16(uint8_t *data, int len)
 }
 /*---------------------------------------------------------------------------*/
 void
-cc2420_aes_cihper(uint8_t *data, int len, int key_index)
+cc2420_aes_cipher(uint8_t *data, int len, int key_index)
 {
   int i;
   uint16_t secctrl0;
diff --git a/core/dev/cc2420-aes.h b/core/dev/cc2420-aes.h
index 002fdec84..ccab812f4 100644
--- a/core/dev/cc2420-aes.h
+++ b/core/dev/cc2420-aes.h
@@ -28,7 +28,7 @@
  *
  * This file is part of the Contiki operating system.
  *
- * $Id: cc2420-aes.h,v 1.1 2008/07/02 08:46:13 adamdunkels Exp $
+ * $Id: cc2420-aes.h,v 1.2 2008/07/02 09:02:39 nifi Exp $
  */
 
 /**
@@ -70,7 +70,7 @@ void cc2420_aes_set_key(uint8_t *key, int index);
  *             function overwrites the data with the encrypted data.
  *
  */
-void cc2420_aes_cihper(uint8_t *data, int len, int key_index);
+void cc2420_aes_cipher(uint8_t *data, int len, int key_index);
 
 
 #endif /* __CC2420_AES_H__ */