diff --git a/fieldmanager.php b/fieldmanager.php
index 20fa2faa79..46423c77a8 100644
--- a/fieldmanager.php
+++ b/fieldmanager.php
@@ -18,7 +18,7 @@
 /**
  * Current version of Fieldmanager.
  */
-define( 'FM_VERSION', '1.3.0' );
+define( 'FM_VERSION', '1.3.1' );
 
 /**
  * Filesystem path to Fieldmanager.
diff --git a/js/fieldmanager.js b/js/fieldmanager.js
index 5f99973e99..8be4b503d9 100644
--- a/js/fieldmanager.js
+++ b/js/fieldmanager.js
@@ -25,16 +25,7 @@ var init_sortable_container = function( el ) {
 
 var init_sortable = function() {
 	$( '.fmjs-sortable' ).each( function() {
-		if ( $( this ).is( ':visible' ) ) {
-			init_sortable_container( this );
-		} else {
-			var sortable = this;
-			$( sortable ).parents( '.fm-group' ).bind( 'fm_collapsible_toggle', function() {
-				if ( $( sortable ).is( ':visible' ) ) {
-					init_sortable_container( sortable );
-				}
-			} );
-		}
+		init_sortable_container( this );
 	} );
 }