diff --git a/library/pk_wrap.c b/library/pk_wrap.c
index dae8b43..c0a7fbd 100644
--- a/library/pk_wrap.c
+++ b/library/pk_wrap.c
@@ -1650,6 +1650,7 @@
  * using the same function. */
 #define ecdsa_opaque_check_pair_wrap    eckey_check_pair_wrap
 #else /* MBEDTLS_PK_USE_PSA_EC_DATA */
+#if defined(MBEDTLS_ECP_LIGHT)
 static int ecdsa_opaque_check_pair_wrap(mbedtls_pk_context *pub,
                                         mbedtls_pk_context *prv,
                                         int (*f_rng)(void *, unsigned char *, size_t),
@@ -1683,6 +1684,7 @@
     }
     return 0;
 }
+#endif /* MBEDTLS_ECP_LIGHT */
 #endif /* MBEDTLS_PK_USE_PSA_EC_DATA */
 
 const mbedtls_pk_info_t mbedtls_ecdsa_opaque_info = {
@@ -1690,8 +1692,16 @@
     .name = "Opaque",
     .get_bitlen = opaque_get_bitlen,
     .can_do = ecdsa_opaque_can_do,
+#if defined(MBEDTLS_PK_CAN_ECDSA_VERIFY)
     .verify_func = ecdsa_opaque_verify_wrap,
+#else /* MBEDTLS_PK_CAN_ECDSA_VERIFY */
+    .verify_func = NULL,
+#endif /* MBEDTLS_PK_CAN_ECDSA_VERIFY */
+#if defined(MBEDTLS_PK_CAN_ECDSA_SIGN)
     .sign_func = ecdsa_opaque_sign_wrap,
+#else /* MBEDTLS_PK_CAN_ECDSA_SIGN */
+    .sign_func = NULL,
+#endif /* MBEDTLS_PK_CAN_ECDSA_SIGN */
 #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
     .verify_rs_func = NULL,
     .sign_rs_func = NULL,
@@ -1700,7 +1710,11 @@
 #endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
     .decrypt_func = NULL,
     .encrypt_func = NULL,
+#if defined(MBEDTLS_ECP_LIGHT)
     .check_pair_func = ecdsa_opaque_check_pair_wrap,
+#else /* MBEDTLS_ECP_LIGHT */
+    .check_pair_func = NULL,
+#endif /* MBEDTLS_ECP_LIGHT */
     .ctx_alloc_func = NULL,
     .ctx_free_func = NULL,
     .debug_func = NULL,