1 files changed, 1 insertions, 1 deletions

diff --git a/src/components/ui/Select.js b/src/components/ui/Select.js
index 15b4c28e7..5ac7ddd6d 100644
--- a/src/components/ui/Select.js
+++ b/src/components/ui/Select.js
@@ -49,7 +49,7 @@ class Select extends Component {
     let selected = field.value;
 
     if (multiple) {
-      if (typeof field.value === 'string' && field.value.substr(0, 1) === '[') {
+      if (typeof field.value === 'string' && field.value.slice(0, 1) === '[') {
         // Value is JSON encoded
         selected = JSON.parse(field.value);
       } else if (typeof field.value === 'object') {