diff --git a/src/Support/Str.php b/src/Support/Str.php
index 9000a12b..a96d4a5e 100644
--- a/src/Support/Str.php
+++ b/src/Support/Str.php
@@ -450,6 +450,10 @@ public static function words(string $words, int $len): string
         $sentence = '';
 
         for ($i = 0; $i < $len; $i++) {
+            if (!isset($wordParts[$i])) {
+                break;
+            }
+    
             $sentence .= ' ' . $wordParts[$i];
         }