diff --git a/wp-admin/custom-header.php b/wp-admin/custom-header.php
index 76f6f746d1..a9aa537f39 100644
--- a/wp-admin/custom-header.php
+++ b/wp-admin/custom-header.php
@@ -1107,7 +1107,7 @@ wp_nonce_field( 'custom-header-options', '_wpnonce-custom-header-options' ); ?>
 		$has_flex_width = current_theme_supports( 'custom-header', 'flex-width' );
 		$has_flex_height = current_theme_supports( 'custom-header', 'flex-height' );
 		$has_max_width = current_theme_supports( 'custom-header', 'max-width' ) ;
-		$dst = array( 'dst_height' => null, 'dst_height' => null );
+		$dst = array( 'dst_height' => null, 'dst_width' => null );
 
 		// For flex, limit size of image displayed to 1500px unless theme says otherwise
 		if ( $has_flex_width ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index e70b4c7daa..0ec3a63ba7 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.1-alpha-30020';
+$wp_version = '4.1-alpha-30021';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.