diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index a358a20..5621965 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -1252,6 +1252,19 @@
 //#define MBEDTLS_PSA_CRYPTO_SPM
 
 /**
+ * \def MBEDTLS_PSA_INJECT_ENTROPY
+ *
+ * Enable support for entropy injection at first boot. This feature is
+ * required on systems that do not have a built-in entropy source (TRNG).
+ * This feature is currently not supported on systems that have a built-in
+ * entropy source.
+ *
+ * Requires: MBEDTLS_PSA_CRYPTO_STORAGE_C, MBEDTLS_ENTROPY_NV_SEED
+ *
+ */
+//#define MBEDTLS_PSA_INJECT_ENTROPY
+
+/**
  * \def MBEDTLS_RSA_NO_CRT
  *
  * Do not use the Chinese Remainder Theorem