From daef2d080d790f0f18fb17c410303c71011dff9f Mon Sep 17 00:00:00 2001
From: Elio Struyf <info@estruyf.be>
Date: Thu, 25 Apr 2019 17:29:07 +0200
Subject: [PATCH] #281 - Fix for undefined className

---
 src/controls/webPartTitle/WebPartTitle.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/controls/webPartTitle/WebPartTitle.tsx b/src/controls/webPartTitle/WebPartTitle.tsx
index 47f6bea31..442f4293c 100644
--- a/src/controls/webPartTitle/WebPartTitle.tsx
+++ b/src/controls/webPartTitle/WebPartTitle.tsx
@@ -45,7 +45,7 @@ export class WebPartTitle extends React.Component<IWebPartTitleProps, {}> {
   public render(): React.ReactElement<IWebPartTitleProps> {
     if (this.props.title || this.props.moreLink || this.props.displayMode === DisplayMode.Edit) {
       return (
-        <div className={`${styles.webPartHeader} ${this.props.className}`}>
+        <div className={`${styles.webPartHeader} ${this.props.className ? this.props.className : ""}`}>
           <div className={styles.webPartTitle}>
             {
               this.props.displayMode === DisplayMode.Edit && (