diff --git a/geofield.openlayers.inc b/geofield.openlayers.inc
index b1090a7..12ceaac 100644
--- a/geofield.openlayers.inc
+++ b/geofield.openlayers.inc
@@ -77,8 +77,8 @@ function geofield_openlayers_maps() {
       'geofield_formatter' => 0,
       'openlayers_geojson_picture_this' => 0,
     ),
-    'projection' => '900913',
-    'displayProjection' => '4326',
+    'projection' => 'EPSG:900913',
+    'displayProjection' => 'EPSG:4326',
     'styles' => array(
       'default' => 'default',
       'select' => 'default',
@@ -153,8 +153,8 @@ function geofield_openlayers_maps() {
       'geofield_formatter' => 0,
       'openlayers_geojson_picture_this' => 0,
     ),
-    'projection' => '900913',
-    'displayProjection' => '4326',
+    'projection' => 'EPSG:900913',
+    'displayProjection' => 'EPSG:4326',
     'styles' => array(
       'default' => 'default',
       'select' => 'default',
@@ -200,7 +200,7 @@ function geofield_openlayers_layers() {
   $layer->description = '';
   $layer->data = array(
     'layer_type' => 'openlayers_layer_type_raw',
-    'projection' => array('900913'),
+    'projection' => array('EPSG:900913'),
     'features' => array()
   );
   $layers[$layer->name] = $layer;