diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index dff4522..f6d2c61 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -885,6 +885,8 @@
  *        MBEDTLS_ECP_ALT, MBEDTLS_ECDH_XXX_ALT, MBEDTLS_ECDSA_XXX_ALT,
  *        MBEDTLS_ECDH_LEGACY_CONTEXT, and MBEDTLS_USE_PSA_CRYPTO.
  *
+ * Requires: MBEDTLS_ECP_C
+ *
  * Uncomment this macro to enable restartable ECC computations.
  */
 //#define MBEDTLS_ECP_RESTARTABLE