diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index bea84c3..3b01db1 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -2028,7 +2028,9 @@
 
 #endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
 
-#if 0 && defined(MBEDTLS_PKCS1_V15) && defined(MBEDTLS_RSA_C)
+#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
+    defined(MBEDTLS_PKCS1_V15) && \
+    defined(MBEDTLS_RSA_C)
 
 #if defined(MBEDTLS_SHA256_C)
         case MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA256:
@@ -2051,7 +2053,9 @@
             break;
 #endif /* MBEDTLS_SHA512_C */
 
-#endif /* MBEDTLS_PKCS1_V15 && MBEDTLS_RSA_C */
+#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
+          MBEDTLS_PKCS1_V15 &&
+          MBEDTLS_RSA_C */
 
             default:
                 return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
@@ -2149,7 +2153,7 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
     if( ssl->tls_version == MBEDTLS_SSL_VERSION_TLS1_3 )
     {
-        return( mbedtls_ssl_tls13_sig_alg_is_supported( sig_alg ) );
+       return( mbedtls_ssl_tls13_sig_alg_is_supported( sig_alg ) );
     }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
     ((void) ssl);