diff --git a/wp-admin/js/customize-controls.dev.js b/wp-admin/js/customize-controls.dev.js
index a0e7dc51d7..449b564b2c 100644
--- a/wp-admin/js/customize-controls.dev.js
+++ b/wp-admin/js/customize-controls.dev.js
@@ -573,6 +573,9 @@
 
 		// Prevent the form from saving when enter is pressed.
 		$('#customize-controls').on( 'keydown', function( e ) {
+			if ( $( e.target ).is('textarea') )
+				return;
+
 			if ( 13 === e.which ) // Enter
 				e.preventDefault();
 		});
diff --git a/wp-includes/js/customize-base.dev.js b/wp-includes/js/customize-base.dev.js
index 7761c0799f..bbebc541aa 100644
--- a/wp-includes/js/customize-base.dev.js
+++ b/wp-includes/js/customize-base.dev.js
@@ -406,6 +406,8 @@ if ( typeof wp === 'undefined' )
 						synchronizer = api.Element.synchronizer[ type ];
 					if ( 'text' === type || 'password' === type )
 						this.events += ' keyup';
+				} else if ( this.element.is('textarea') ) {
+					this.events += ' keyup';
 				}
 			}