diff --git a/src/NoCaptcha.php b/src/NoCaptcha.php
index 63cd00e..466d71b 100644
--- a/src/NoCaptcha.php
+++ b/src/NoCaptcha.php
@@ -29,6 +29,12 @@ class NoCaptcha
      */
     protected $http;
 
+    /**
+     * Check if the JS file is imported.
+     *
+     * @var bool
+     */
+    private static $imported = false;
     /**
      * NoCaptcha.
      *
@@ -53,10 +59,13 @@ public function __construct($secret, $sitekey)
     public function display($attributes = [], $lang = null)
     {
         $attributes['data-sitekey'] = $this->sitekey;
+        $html ='';
 
-        $html = '<script src="'.$this->getJsLink($lang).'" async defer></script>'."\n";
-        $html .= '<div class="g-recaptcha"'.$this->buildAttributes($attributes).'></div>';
+        !static::$imported && $html = '<script src="'.$this->getJsLink($lang).'" async defer></script>'."\n";
+        static::$imported = true;
 
+        $html .= '<div class="g-recaptcha"'.$this->buildAttributes($attributes).'></div>';
+       
         return $html;
     }