diff --git a/src/Scripts/ProcessProperties.php b/src/Scripts/ProcessProperties.php
index c80dab3..a2b6c8b 100644
--- a/src/Scripts/ProcessProperties.php
+++ b/src/Scripts/ProcessProperties.php
@@ -184,7 +184,7 @@ private function suppressStyle($nb, $html) {
 		$j = false;
 		$i = 0;
 		while($j == false){
-			if($html[($nb+$i)]==">"){
+			if(isset($html[($nb+$i)]) && $html[($nb+$i)]==">"){
 				$j = true;
 			}
 			else{