diff --git a/modules/mbedtls/configs/config-tls-generic.h b/modules/mbedtls/configs/config-tls-generic.h
index eeb15571e42..a6527f8166f 100644
--- a/modules/mbedtls/configs/config-tls-generic.h
+++ b/modules/mbedtls/configs/config-tls-generic.h
@@ -429,11 +429,11 @@
 #define MBEDTLS_PK_C
 #endif
 
-#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_ECDSA_C) || defined(MBEDTLS_RSA_C) || defined(MBEDTLS_X509_USE_C)
 #define MBEDTLS_ASN1_PARSE_C
 #endif
 
-#if defined(MBEDTLS_ECDSA_C) || defined(MBEDTLS_PK_WRITE_C)
+#if defined(MBEDTLS_ECDSA_C) || defined(MBEDTLS_RSA_C) || defined(MBEDTLS_PK_WRITE_C)
 #define MBEDTLS_ASN1_WRITE_C
 #endif