diff --git a/config.php-dist b/config.php-dist
index 834925a03..56d9c13a2 100644
--- a/config.php-dist
+++ b/config.php-dist
@@ -3,5 +3,6 @@
 	define('MAGPIE_CACHE_DIR', '/var/tmp/magpie-ttrss-cache');
 	define(HEADLINES_PER_PAGE, 15);
 	define(MIN_UPDATE_TIME, 600);
+	define(CONTENT_CHECK_MD5, false);
 ?>
 
diff --git a/functions.php b/functions.php
index 3e5013472..f53ceb1cd 100644
--- a/functions.php
+++ b/functions.php
@@ -72,8 +72,8 @@
 	
 					$unread = pg_fetch_result($result, 0, "unread");
 					$md5_hash = pg_fetch_result($result, 0, "md5_hash");
-				
-					if ($md5_hash != $content_md5) 
+					
+					if ($md5_hash != $content_md5 && CONTENT_CHECK_MD5) 
 						$unread = "true";
 				
 					if ($unread) {