diff --git a/app/code/community/Studioforty9/Recaptcha/Block/Explicit.php b/app/code/community/Studioforty9/Recaptcha/Block/Explicit.php
index 956532f..7b4f52c 100644
--- a/app/code/community/Studioforty9/Recaptcha/Block/Explicit.php
+++ b/app/code/community/Studioforty9/Recaptcha/Block/Explicit.php
@@ -144,4 +144,14 @@ public function getSize()
     {
         return Mage::helper('studioforty9_recaptcha')->getSize();
     }
+
+    /**
+     * Get a unique ID for the recaptcha block.
+     *
+     * @return string
+     */
+    public function getRecaptchaId()
+    {
+        return uniqid();
+    }
 }