diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 216107d..6380e54 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -1026,7 +1026,7 @@
 #endif
 
 #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) && \
-            ( !defined(MBEDTLS_X509_CSR_WRITE_C) )
+            ( !defined(MBEDTLS_X509_CRT_PARSE_C) )
 #error "MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK defined, but not all prerequisites"
 #endif
 
diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index 328d2ab..13f96d2 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -2013,6 +2013,8 @@
  * See the documentation of `mbedtls_x509_crt_verify_with_ca_cb()` and
  * `mbedtls_ssl_conf_ca_cb()` for more information.
  *
+ * Requires: MBEDTLS_X509_CRT_PARSE_C
+ *
  * Uncomment to enable trusted certificate callbacks.
  */
 //#define MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK