diff --git a/include/polarssl/ecp.h b/include/polarssl/ecp.h
index 1d6310a..4b02181 100644
--- a/include/polarssl/ecp.h
+++ b/include/polarssl/ecp.h
@@ -33,8 +33,9 @@
  * ECP error codes
  */
 #define POLARSSL_ERR_ECP_BAD_INPUT_DATA                    -0x4F80  /**< Bad input parameters to function. */
-#define POLARSSL_ERR_ECP_BUFFER_TOO_SMALL                  -0x4F80  /**< The buffer is too small to write to. */
-#define POLARSSL_ERR_ECP_GENERIC                           -0x4F00  /**<  Generic ECP error */
+#define POLARSSL_ERR_ECP_BUFFER_TOO_SMALL                  -0x4F00  /**< The buffer is too small to write to. */
+#define POLARSSL_ERR_ECP_GENERIC                           -0x4E80  /**<  Generic ECP error */
+#define POLARSSL_ERR_ECP_FEATURE_UNAVAILABLE               -0x4E00  /**< Requested curve not available. */
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/include/polarssl/error.h b/include/polarssl/error.h
index 7658814..366864c 100644
--- a/include/polarssl/error.h
+++ b/include/polarssl/error.h
@@ -71,7 +71,6 @@
  * SHA2      1  0x0078-0x0078
  * SHA4      1  0x007A-0x007A
  * PBKDF2    1  0x007C-0x007C
- * ECP       1  0x007E-0x007E
  *
  * High-level module nr (3 bits - 0x1...-0x8...)
  * Name     ID  Nr of Errors
@@ -81,7 +80,7 @@
  * DHM      3   6
  * PKCS5    3   4 (Started from top)
  * RSA      4   9
- * ECP      4   1 (Started from top)
+ * ECP      4   4 (Started from top)
  * MD       5   4
  * CIPHER   6   5
  * SSL      6   2 (Started from top)