diff --git a/video_embed_field.module b/video_embed_field.module
index 8f25a71..b8d89b0 100755
--- a/video_embed_field.module
+++ b/video_embed_field.module
@@ -347,19 +347,22 @@ function template_preprocess_video_embed_field_embed_code(&$variables) {
     $variables['style_settings'] = $handler['defaults'];
   }
 
+  if (!empty($variables['url'])) {
+    // Prepare the URL
+    if (!stristr($variables['url'], 'http://') && !stristr($variables['url'], 'https://')) {
+      $variables['url'] = 'http://' . $variables['url'];
+    }
 
-  // Prepare the URL
-  if (!stristr($variables['url'], 'http://') && !stristr($variables['url'], 'https://')) {
-    $variables['url'] = 'http://' . $variables['url'];
-  }
-
-  // Prepare embed code
-  if ($handler && isset($handler['function']) && function_exists($handler['function'])) {
-    $embed_code = call_user_func($handler['function'], $variables['url'], $variables['style_settings']);
-    $variables['embed_code'] = drupal_render($embed_code);
-  }
-  else {
-    $variables['embed_code'] = l($variables['url'], $variables['url']);
+    // Prepare embed code
+    if ($handler && isset($handler['function']) && function_exists($handler['function'])) {
+      $embed_code = call_user_func($handler['function'], $variables['url'], $variables['style_settings']);
+      $variables['embed_code'] = drupal_render($embed_code);
+    }
+    else {
+      $variables['embed_code'] = l($variables['url'], $variables['url']);
+    }
+  } else {
+    $variables['embed_code'] = '';
   }
 
   // Prepare video data