diff --git a/views/proximity_plugins/geofieldProximityManual.inc b/views/proximity_plugins/geofieldProximityManual.inc
index b9e8967..2d890b8 100644
--- a/views/proximity_plugins/geofieldProximityManual.inc
+++ b/views/proximity_plugins/geofieldProximityManual.inc
@@ -35,8 +35,8 @@ class geofieldProximityManual extends geofieldProximityBase implements geofieldP
 
   public function getSourceValue($views_plugin) {
     return array(
-      'latitude' => (isset($views_plugin->value)) ? $views_plugin->value['origin']['lat'] : $views_plugin->options['geofield_proximity_manual']['lat'],
-      'longitude' => (isset($views_plugin->value)) ? $views_plugin->value['origin']['lon'] : $views_plugin->options['geofield_proximity_manual']['lon'],
+      'latitude' => (isset($views_plugin->value) && $views_plugin->value['origin']['lat'] !== '') ? $views_plugin->value['origin']['lat'] : $views_plugin->options['geofield_proximity_manual']['lat'],
+      'longitude' => (isset($views_plugin->value) && $views_plugin->value['origin']['lon'] !== '') ? $views_plugin->value['origin']['lon'] : $views_plugin->options['geofield_proximity_manual']['lon'],
     );
   }
 }
\ No newline at end of file