diff --git a/tests/suites/test_suite_ecp.data b/tests/suites/test_suite_ecp.data
index 73d5315db..86533665c 100644
--- a/tests/suites/test_suite_ecp.data
+++ b/tests/suites/test_suite_ecp.data
@@ -292,11 +292,11 @@ ECP read key #4 (short weierstrass, too big)
 depends_on:MBEDTLS_ECP_DP_SECP192R1_ENABLED
 mbedtls_ecp_read_key:MBEDTLS_ECP_DP_SECP192R1:"FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831":MBEDTLS_ERR_ECP_INVALID_KEY
 
-ECP read key #5 (Curve25519, too big)
+ECP read key #5 (Curve25519, most significant bit set)
 depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
 mbedtls_ecp_read_key:MBEDTLS_ECP_DP_CURVE25519:"000000000000000000000000000000000000000000000000000000000000000C":0
 
-ECP read key #6 (Curve25519, not big enough)
+ECP read key #6 (Curve25519, second most significant bit unset)
 depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
 mbedtls_ecp_read_key:MBEDTLS_ECP_DP_CURVE25519:"0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF3":0