diff --git a/src/icons.yml b/src/icons.yml
index d4cf02baa..60253883d 100644
--- a/src/icons.yml
+++ b/src/icons.yml
@@ -996,6 +996,8 @@ icons:
       - stop
       - abort
       - cancel
+      - "no"
+      - prohibit
     categories:
       - Web Application Icons