diff --git a/htmLawed.php b/htmLawed.php
index 7a77ece..171b7a6 100755
--- a/htmLawed.php
+++ b/htmLawed.php
@@ -519,7 +519,7 @@ function hl_tag($t){
    $v = str_replace("­", ' ', (strpos($v, '&') !== false ? str_replace(array('­', '­', '­'), ' ', $v) : $v)); # double-quoted char: soft-hyphen; appears here as "­" or hyphen or something else depending on viewing software
    if($k == 'srcset'){
     $v2 = '';
-    $pattern = "/(?:[^\"'\s]+\s*(?:\d+[wx])+)/";
+    $pattern = "/(?:[^\"'\s]+\s*(?:\d+w|\d+(?:\.\d+)?x)+)/";
     preg_match_all($pattern, $v, $matches);
     $matches = call_user_func_array('array_merge', $matches);
     foreach($matches as $k1=>$v1){