diff --git a/less/notification.less b/less/notification.less
index 199c950..75746e2 100644
--- a/less/notification.less
+++ b/less/notification.less
@@ -29,6 +29,7 @@
   border: @notification-message-border-width solid @notification-message-border;
   border-radius: @notification-message-border-radius;
   box-shadow: @notification-message-box-shadow;
+  word-break: break-all;
 }
 
 .hook-notification-message-primary() {
diff --git a/less/tooltip.less b/less/tooltip.less
index df18e14..6db6f1c 100644
--- a/less/tooltip.less
+++ b/less/tooltip.less
@@ -10,4 +10,5 @@
 .hook-tooltip() {
   border: @tooltip-border-width solid @tooltip-border;
   box-shadow: @tooltip-shadow;
+  word-break: break-all;
 }