diff --git a/include/polarssl/rsa.h b/include/polarssl/rsa.h
index f9d02bd..e61d75c 100644
--- a/include/polarssl/rsa.h
+++ b/include/polarssl/rsa.h
@@ -241,7 +241,7 @@
  *
  * \param ctx      RSA context
  * \param mode     RSA_PUBLIC or RSA_PRIVATE
- * \param ilen     contains the the plaintext length
+ * \param ilen     contains the plaintext length
  * \param input    buffer holding the data to be encrypted
  * \param output   buffer that will hold the ciphertext
  *
diff --git a/include/polarssl/x509.h b/include/polarssl/x509.h
index 832752d..7b76fb5 100644
--- a/include/polarssl/x509.h
+++ b/include/polarssl/x509.h
@@ -214,7 +214,7 @@
  *
  * \return         0 if successful, or a specific X509 error code
  */
-int x509parse_crt( x509_cert *crt, unsigned char *buf, int buflen );
+int x509parse_crt( x509_cert *chain, unsigned char *buf, int buflen );
 
 /**
  * \brief          Load one or more certificates and add them
@@ -225,7 +225,7 @@
  *
  * \return         0 if successful, or a specific X509 error code
  */
-int x509parse_crtfile( x509_cert *crt, char *path );
+int x509parse_crtfile( x509_cert *chain, char *path );
 
 /**
  * \brief          Parse a private RSA key