diff --git a/library/ecp.c b/library/ecp.c
index 3804047..1420f22 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -410,6 +410,9 @@
 #if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
     { MBEDTLS_ECP_DP_SECP192K1,    18,     192,    "secp192k1"         },
 #endif
+#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
+    { MBEDTLS_ECP_DP_CURVE25519,   0x001D, 256,    "x25519"            },
+#endif
     { MBEDTLS_ECP_DP_NONE,          0,     0,      NULL                },
 };