diff --git a/include/polarssl/config.h b/include/polarssl/config.h
index bdd40af..0b76f08 100644
--- a/include/polarssl/config.h
+++ b/include/polarssl/config.h
@@ -248,6 +248,10 @@
 #define POLARSSL_ECP_DP_BP256R1_ENABLED
 #define POLARSSL_ECP_DP_BP384R1_ENABLED
 #define POLARSSL_ECP_DP_BP512R1_ENABLED
+//#define POLARSSL_ECP_DP_M221_ENABLED  // Not implemented yet!
+#define POLARSSL_ECP_DP_M255_ENABLED
+//#define POLARSSL_ECP_DP_M383_ENABLED  // Not implemented yet!
+//#define POLARSSL_ECP_DP_M511_ENABLED  // Not implemented yet!
 
 /**
  * \def POLARSSL_ECP_NIST_OPTIM