diff --git a/lib/QrReader.php b/lib/QrReader.php
index b7dd1ea..f976156 100644
--- a/lib/QrReader.php
+++ b/lib/QrReader.php
@@ -91,7 +91,7 @@ public function text()
     {
         $this->decode();
 
-        if (method_exists($this->result, 'toString')) {
+        if ($this->result !== false && method_exists($this->result, 'toString')) {
             return $this->result->toString();
         }