diff --git a/ChangeLog b/ChangeLog
index d7bdbd8f50c000cce082e295f78ebe577a4cc544..695a50e3e5bad4a1e32d647ee511300a7a7fcc3e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2014-03-15  Niels Möller  <nisse@lysator.liu.se>
 
+	* salsa20.h (SALSA20_NONCE_SIZE): Renamed constant, old name
+	SALSA20_IV_SIZE kept as an alias.
+	(salsa20_set_nonce): Update prototype for the 2014-01-20 rename.
+
 	* Makefile.in (.asm.s): Add dependencies.
 	(.s.o, .s.po): Empty any dependency .d file.
 
diff --git a/salsa20.h b/salsa20.h
index 444b5b4357d36bd166aff347432c981618e0be98..3539974146a93687c7cb641602116b83ea9cc42e 100644
--- a/salsa20.h
+++ b/salsa20.h
@@ -50,7 +50,8 @@ extern "C" {
 #define SALSA20_128_KEY_SIZE 16
 #define SALSA20_256_KEY_SIZE 32
 #define SALSA20_BLOCK_SIZE 64
-#define SALSA20_IV_SIZE 8
+#define SALSA20_NONCE_SIZE 8
+#define SALSA20_IV_SIZE SALSA20_NONCE_SIZE
 
 /* Aliases */
 #define SALSA20_MIN_KEY_SIZE 16
@@ -83,8 +84,8 @@ salsa20_set_key(struct salsa20_ctx *ctx,
 		size_t length, const uint8_t *key);
 
 void
-salsa20_set_iv(struct salsa20_ctx *ctx, const uint8_t *iv);
-
+salsa20_set_nonce(struct salsa20_ctx *ctx, const uint8_t *iv);
+  
 void
 salsa20_crypt(struct salsa20_ctx *ctx,
 	      size_t length, uint8_t *dst,