diff --git a/koha-tmpl/intranet-tmpl/prog/js/modals/place_booking.js b/koha-tmpl/intranet-tmpl/prog/js/modals/place_booking.js
index 4e43685d00..a991215046 100644
--- a/koha-tmpl/intranet-tmpl/prog/js/modals/place_booking.js
+++ b/koha-tmpl/intranet-tmpl/prog/js/modals/place_booking.js
@@ -1999,7 +1999,7 @@ $("#placeBookingModal").on("show.bs.modal", function (e) {
                                             }
                                         } else {
                                             message = __(
-                                                "Cannot select: conflicts with existing an booking"
+                                                "Cannot select: conflicts with an existing booking"
                                             );
                                         }
                                     }