diff --git a/include/mbedtls/blowfish.h b/include/mbedtls/blowfish.h
index 77dca70..15a49c5 100644
--- a/include/mbedtls/blowfish.h
+++ b/include/mbedtls/blowfish.h
@@ -185,7 +185,7 @@
  *                 #MBEDTLS_BLOWFISH_ENCRYPT for encryption, or
  *                 #MBEDTLS_BLOWFISH_DECRYPT for decryption.
  * \param length   The length of the input data in Bytes.
- * \param iv_off   The offset in the initialiation vector.
+ * \param iv_off   The offset in the initialization vector.
  *                 The value pointed to must be smaller than \c 8 Bytes.
  *                 It is updated by this function to support the aforementioned
  *                 streaming usage.