diff --git a/src/admin/BookingsList.js b/src/admin/BookingsList.js
index b8367b6..d01bbfc 100644
--- a/src/admin/BookingsList.js
+++ b/src/admin/BookingsList.js
@@ -262,6 +262,7 @@ class BookingsListImpl extends React.PureComponent {
                     value={bookings.map(it => it.emailAddress).join('; ')}
                     inputProps={{ className: 'input' }}
                     fullWidth
+                    multiline
                 />
             </FormControl>
         )