diff --git a/modules/geolocation_googlemaps/geolocation_googlemaps.module b/modules/geolocation_googlemaps/geolocation_googlemaps.module
index 5233bf6..6eff6db 100644
--- a/modules/geolocation_googlemaps/geolocation_googlemaps.module
+++ b/modules/geolocation_googlemaps/geolocation_googlemaps.module
@@ -273,8 +273,14 @@ function geolocation_googlemaps_field_formatter_view($entity_type, $entity, $fie
 
         // Attach CSS and JS files via FAPI '#attached'.
         $map_element['googlemap']['#attached']['css'][] = drupal_get_path('module', 'geolocation_googlemaps') . '/geolocation_googlemaps.css';
+        $data['sensor'] = 'false';
+        $api_key = variable_get('geolocation_googlemaps_api_key', '');
+        if (!empty($api_key)) {
+          $data['key'] = $api_key;
+        }
+        $query = drupal_http_build_query($data);
         $map_element['googlemap']['#attached']['js'][] = array(
-          'data' => '//maps.google.com/maps/api/js?sensor=false',
+          'data' => '//maps.google.com/maps/api/js?' . $query,
           'type' => 'external',
         );
         $map_element['googlemap']['#attached']['js'][] = array(
@@ -580,9 +586,15 @@ function geolocation_googlemaps_field_widget_form_alter(&$element, &$form_state,
  */
 function geolocation_googlemaps_attach_google_js(&$element) {
   $js_added_already = &drupal_static(__FUNCTION__, FALSE);
-  if (!$js_added_already) {
+  if (!$js_added_already) {  
+    $data['sensor'] = 'false';
+    $api_key = variable_get('geolocation_googlemaps_api_key', '');
+    if (!empty($api_key)) {
+      $data['key'] = $api_key;
+    }
+    $query = drupal_http_build_query($data);
     $element['#attached']['js'][] = array(
-      'data' => '//maps.google.com/maps/api/js?sensor=false',
+      'data' => '//maps.google.com/maps/api/js?' . $query,
       'type' => 'external',
     );
     $element['#attached']['js'][] = array(