diff --git a/src/js/media/controllers/cropper.js b/src/js/media/controllers/cropper.js
index b0a7a394400e5..2685f743ea8c7 100644
--- a/src/js/media/controllers/cropper.js
+++ b/src/js/media/controllers/cropper.js
@@ -116,7 +116,7 @@ Cropper = wp.media.controller.State.extend(/** @lends wp.media.controller.Croppe
 						selection.set({cropDetails: controller.state().imgSelect.getSelection()});
 
 						this.$el.text(l10n.cropping);
-						this.$el.attr('disabled', true);
+						this.$el.prop( 'disabled', true );
 
 						controller.state().doCrop( selection ).done( function( croppedImage ) {
 							controller.trigger('cropped', croppedImage );
diff --git a/src/js/media/views/button.js b/src/js/media/views/button.js
index 988c95ccb1bf3..5b380d13d19f0 100644
--- a/src/js/media/views/button.js
+++ b/src/js/media/views/button.js
@@ -64,7 +64,7 @@ var Button = wp.media.View.extend(/** @lends wp.media.view.Button.prototype */{
 		classes = _.uniq( classes.concat( this.options.classes ) );
 		this.el.className = classes.join(' ');
 
-		this.$el.attr( 'disabled', model.disabled );
+		this.$el.prop( 'disabled', model.disabled );
 		this.$el.text( this.model.get('text') );
 
 		return this;