diff --git a/ecdh.h b/ecdh.h
index e1a63e1..f3e3840 100644
--- a/ecdh.h
+++ b/ecdh.h
@@ -54,9 +54,9 @@ extern "C" {
 #define NIST_B283  5
 #define NIST_K283  6
 #define NIST_B409  7
-#define NIST_K409  8 /* currently defunct :( */
+#define NIST_K409  8
 #define NIST_B571  9
-#define NIST_K571 10 /* also not working...  */
+#define NIST_K571 10
 
 /* What is the default curve to use? */
 #ifndef ECC_CURVE