diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 87bd3f0..bea84c3 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -2028,7 +2028,7 @@
 
 #endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
 
-#if defined(MBEDTLS_PKCS1_V15) && defined(MBEDTLS_RSA_C)
+#if 0 && defined(MBEDTLS_PKCS1_V15) && defined(MBEDTLS_RSA_C)
 
 #if defined(MBEDTLS_SHA256_C)
         case MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA256: