diff --git a/src/react-multi-email/ReactMultiEmail.tsx b/src/react-multi-email/ReactMultiEmail.tsx
index fcfdc23..6db1075 100644
--- a/src/react-multi-email/ReactMultiEmail.tsx
+++ b/src/react-multi-email/ReactMultiEmail.tsx
@@ -139,6 +139,7 @@ class ReactMultiEmail extends React.Component<
   handleOnKeydown = (e: React.KeyboardEvent<HTMLInputElement>) => {
     switch (e.which) {
       case 13:
+      case 9:
         e.preventDefault();
         break;
       case 8:
@@ -153,6 +154,7 @@ class ReactMultiEmail extends React.Component<
   handleOnKeyup = (e: React.KeyboardEvent<HTMLInputElement>) => {
     switch (e.which) {
       case 13:
+      case 9:
         this.findEmailAddress(e.currentTarget.value, true);
         break;
       default: