diff --git a/themes/default/js/networkGraph.js b/themes/default/js/networkGraph.js
index b7bcea1..e1b04bb 100644
--- a/themes/default/js/networkGraph.js
+++ b/themes/default/js/networkGraph.js
@@ -182,7 +182,7 @@
 		 */
 		function getDateString( date )  {
 			return twoDigits( date.getDate() )	+ '/'
-				+ twoDigits( date.getMonth() ) + '/'
+				+ twoDigits( date.getMonth() + 1 ) + '/'
 				+ date.getFullYear() + ' at '
 				+ twoDigits(date.getHours()) + ':'
 				+ twoDigits(date.getMinutes()) + ':'
@@ -578,4 +578,4 @@
 		// load initial data
 		dataRetriever.retrieve( );
 	});
-}( jQuery ));
\ No newline at end of file
+}( jQuery ));