diff --git a/wp-gpx-maps_utils_nggallery.php b/wp-gpx-maps_utils_nggallery.php
index 5b88078..014915e 100644
--- a/wp-gpx-maps_utils_nggallery.php
+++ b/wp-gpx-maps_utils_nggallery.php
@@ -28,10 +28,14 @@ function getNGGalleryImages( $ngGalleries, $ngImages, $dt, $lat, $lon, $dtoffset
 	try {
 		$pictures = array();
 		foreach ( $galids as $g ) {
+                    if ($g != null ) {
 			$pictures = array_merge( $pictures, nggdb::get_gallery( $g ) );
+                    }
 		}
 		foreach ( $imgids as $i ) {
+                    if ($i != null) {
 			array_push( $pictures, nggdb::find_image( $i ) );
+                    }
 		}
 		foreach ( $pictures as $p ) {
 			$item         = array();