diff --git a/include/tags.php b/include/tags.php
index ba61f448e0..e5bc29cd4f 100644
--- a/include/tags.php
+++ b/include/tags.php
@@ -83,7 +83,7 @@ function create_tags_from_item($itemid) {
 			if(ctype_digit(substr(trim($tag),1)))
 				continue;
 			// try to ignore html hex escapes, e.g. #x2317
-			if((substr(trim($tag),1,1) == 'x' || substr(trim($tag),1,1) == 'X') && ctype_digit(substr(trim($tag),2,1)))
+			if((substr(trim($tag),1,1) == 'x' || substr(trim($tag),1,1) == 'X') && ctype_digit(substr(trim($tag),2)))
 				continue;
 			$type = TERM_HASHTAG;
 			$term = substr($tag, 1);