diff --git a/src/wp-includes/js/media-models.js b/src/wp-includes/js/media-models.js
index d55d152aad..27b7c69f23 100644
--- a/src/wp-includes/js/media-models.js
+++ b/src/wp-includes/js/media-models.js
@@ -897,14 +897,18 @@ var Attachments = Backbone.Collection.extend({
 		type: function( attachment ) {
 			var type = this.props.get('type'), atts = attachment.toJSON(), mime, found;
 
+			if ( ! type || ( _.isArray( type ) && ! type.length ) ) {
+				return true;
+			}
+
 			mime = atts.mime || ( atts.file && atts.file.type ) || '';
 
 			if ( _.isArray( type ) ) {
-				found = ! type.length || _.find( type, function (t) {
+				found = _.find( type, function (t) {
 					return -1 !== mime.indexOf( t );
 				} );
 			} else {
-				found = ! type || -1 !== mime.indexOf( type );
+				found = -1 !== mime.indexOf( type );
 			}
 
 			return found;
diff --git a/src/wp-includes/js/media/models/attachments.js b/src/wp-includes/js/media/models/attachments.js
index 2cc3b6a421..7a0751722b 100644
--- a/src/wp-includes/js/media/models/attachments.js
+++ b/src/wp-includes/js/media/models/attachments.js
@@ -493,14 +493,18 @@ var Attachments = Backbone.Collection.extend({
 		type: function( attachment ) {
 			var type = this.props.get('type'), atts = attachment.toJSON(), mime, found;
 
+			if ( ! type || ( _.isArray( type ) && ! type.length ) ) {
+				return true;
+			}
+
 			mime = atts.mime || ( atts.file && atts.file.type ) || '';
 
 			if ( _.isArray( type ) ) {
-				found = ! type.length || _.find( type, function (t) {
+				found = _.find( type, function (t) {
 					return -1 !== mime.indexOf( t );
 				} );
 			} else {
-				found = ! type || -1 !== mime.indexOf( type );
+				found = -1 !== mime.indexOf( type );
 			}
 
 			return found;