diff --git a/wp-admin/user-new.php b/wp-admin/user-new.php
index b7665ebddc..69d2884f82 100644
--- a/wp-admin/user-new.php
+++ b/wp-admin/user-new.php
@@ -31,10 +31,6 @@ Please click the following link to activate your user account:
 %%s' ), get_bloginfo( 'name' ), home_url(), wp_specialchars_decode( translate_user_role( $role['name'] ) ) );
 	}
 	add_filter( 'wpmu_signup_user_notification_email', 'admin_created_user_email' );
-
-	function admin_created_user_subject( $text ) {
-		return sprintf( __( '[%s] Your site invite' ), get_bloginfo( 'name' ) );
-	}
 }
 
 if ( isset($_REQUEST['action']) && 'adduser' == $_REQUEST['action'] ) {
diff --git a/wp-includes/ms-deprecated.php b/wp-includes/ms-deprecated.php
index 5c7bfe2a82..a8da861c7a 100644
--- a/wp-includes/ms-deprecated.php
+++ b/wp-includes/ms-deprecated.php
@@ -345,3 +345,18 @@ function get_blogaddress_by_domain( $domain, $path ) {
 	}
 	return esc_url_raw( $url );
 }
+
+/**
+ * Supply a subject for a site invitation email. Added via filter in MU.
+ * Never used after the WPMU merge.
+ *
+ * @since MU
+ * @deprecated 4.1.0
+ *
+ * @return string
+ */
+function admin_created_user_subject() {
+	_deprecated_function( __FUNCTION__, '4.1' );
+
+	return sprintf( __( '[%s] Your site invite' ), get_bloginfo( 'name' ) );
+}
\ No newline at end of file
diff --git a/wp-includes/version.php b/wp-includes/version.php
index fd2566a64c..32d671a434 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.1-alpha-30004';
+$wp_version = '4.1-alpha-30005';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.