diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 5ea7b9470..17eb0340c 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -830,10 +830,10 @@
 #endif
 
 #if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_SRV_C) && \
-    ( !defined(MBEDTLS_SSL_MAX_EARLY_DATA_SIZE)     || \
-      ( MBEDTLS_SSL_MAX_EARLY_DATA_SIZE < 0 )       || \
-      ( MBEDTLS_SSL_MAX_EARLY_DATA_SIZE > UINT32_MAX ) )
-#error "MBEDTLS_SSL_MAX_EARLY_DATA_SIZE MUST be defined and in range(0..UINT32_MAX)"
+    defined(MBEDTLS_SSL_MAX_EARLY_DATA_SIZE) &&                      \
+        ((MBEDTLS_SSL_MAX_EARLY_DATA_SIZE < 0) ||                    \
+         (MBEDTLS_SSL_MAX_EARLY_DATA_SIZE > UINT32_MAX))
+#error "MBEDTLS_SSL_MAX_EARLY_DATA_SIZE must be in the range(0..UINT32_MAX)"
 #endif
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)     && \
diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index 2f5c672fb..314dac639 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -1830,26 +1830,12 @@
  * This feature is experimental, not completed and thus not ready for
  * production.
  *
+ * \note The maximum amount of early data can be set with
+ *       MBEDTLS_SSL_MAX_EARLY_DATA_SIZE.
+ *
  */
 //#define MBEDTLS_SSL_EARLY_DATA
 
-/**
- * \def MBEDTLS_SSL_MAX_EARLY_DATA_SIZE
- *
- * The default maximum amount of 0-RTT data. See the documentation of
- * \c mbedtls_ssl_tls13_conf_max_early_data_size() for more information.
- *
- * It must be positive and smaller than UINT32_MAX.
- *
- * If MBEDTLS_SSL_EARLY_DATA is not defined, this default value does not
- * have any impact on the build.
- *
- * This feature is experimental, not completed and thus not ready for
- * production.
- *
- */
-#define MBEDTLS_SSL_MAX_EARLY_DATA_SIZE        1024
-
 /**
  * \def MBEDTLS_SSL_PROTO_DTLS
  *
@@ -4040,6 +4026,23 @@
  */
 //#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
 
+/**
+ * \def MBEDTLS_SSL_MAX_EARLY_DATA_SIZE
+ *
+ * The default maximum amount of 0-RTT data. See the documentation of
+ * \c mbedtls_ssl_tls13_conf_max_early_data_size() for more information.
+ *
+ * It must be positive and smaller than UINT32_MAX.
+ *
+ * If MBEDTLS_SSL_EARLY_DATA is not defined, this default value does not
+ * have any impact on the build.
+ *
+ * This feature is experimental, not completed and thus not ready for
+ * production.
+ *
+ */
+//#define MBEDTLS_SSL_MAX_EARLY_DATA_SIZE        1024
+
 /**
  * \def MBEDTLS_SSL_TLS1_3_TICKET_AGE_TOLERANCE
  *
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index a3ecbfbf6..d6083daf1 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -405,6 +405,10 @@
 #define MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY 16
 #endif
 
+#if !defined(MBEDTLS_SSL_MAX_EARLY_DATA_SIZE)
+#define MBEDTLS_SSL_MAX_EARLY_DATA_SIZE        1024
+#endif
+
 #if !defined(MBEDTLS_SSL_TLS1_3_TICKET_AGE_TOLERANCE)
 #define MBEDTLS_SSL_TLS1_3_TICKET_AGE_TOLERANCE 6000
 #endif