diff --git a/include/functions.php b/include/functions.php
index 8a869dc08..ebf4021ae 100755
--- a/include/functions.php
+++ b/include/functions.php
@@ -1753,11 +1753,8 @@
 	}
 
 	function tag_is_valid($tag) {
-		if ($tag == '') return false;
-		if (is_numeric($tag)) return false;
-		if (mb_strlen($tag) > 250) return false;
-
-		if (!$tag) return false;
+		if (!$tag || is_numeric($tag) || mb_strlen($tag) > 250)
+			return false;
 
 		return true;
 	}