diff --git a/location.views.inc b/location.views.inc
index 90b6f92..60441f5 100644
--- a/location.views.inc
+++ b/location.views.inc
@@ -159,6 +159,10 @@ function location_views_data() {
     'field' => array(
       'click sortable' => TRUE,
     ),
+    'argument' => array(
+      'handler' => 'views_handler_argument_string',
+      'empty field name' => t('Unknown'),
+    ),
     'filter' => array(
       'handler' => 'views_handler_filter_string',
     ),
@@ -175,6 +179,10 @@ function location_views_data() {
       'handler' => 'location_handler_field_location_street',
       'click sortable' => TRUE,
     ),
+    'argument' => array(
+      'handler' => 'views_handler_argument_string',
+      'empty field name' => t('Unknown'),
+    ),
     'filter' => array(
       'handler' => 'views_handler_filter_string',
     ),
@@ -228,6 +236,10 @@ function location_views_data() {
     'field' => array(
       'click sortable' => TRUE,
     ),
+    'argument' => array(
+      'handler' => 'views_handler_argument_string',
+      'empty field name' => t('Unknown'),
+    ),
     'filter' => array(
       'handler' => 'views_handler_filter_string',
     ),
@@ -264,6 +276,9 @@ function location_views_data() {
       'handler' => 'location_views_handler_field_latitude',
       'click sortable' => TRUE,
     ),
+    'argument' => array(
+      'handler' => 'views_handler_argument_numeric',
+    ),
     'filter' => array(
       'handler' => 'views_handler_filter_numeric',
     ),
@@ -278,6 +293,9 @@ function location_views_data() {
       'handler' => 'location_views_handler_field_longitude',
       'click sortable' => TRUE,
     ),
+    'argument' => array(
+      'handler' => 'views_handler_argument_numeric',
+    ),
     'filter' => array(
       'handler' => 'views_handler_filter_numeric',
     ),