diff --git a/src/download_page.py b/src/download_page.py
index 11ce84c..2bf941f 100644
--- a/src/download_page.py
+++ b/src/download_page.py
@@ -29,7 +29,10 @@ def download (platform, url, args, verbosity, return_http_code=False, follow_loc
 	response_code = c.getinfo(c.RESPONSE_CODE)
 	c.close()
 	debug (url + " downloaded!", verbosity, platform)
-	debug ("Response code: " + str(response_code), verbosity, platform)
+	if int(response_code) in range(400,599):
+		error ("Server returned " + str(response_code), verbosity, platform)
+	else:
+		debug ("Server returned " + str(response_code), verbosity, platform)
 	if return_http_code:
 		return page_bytes.getvalue().decode('utf8'),response_code
 	else: