diff --git a/src/main/resources/org/mastodon/ui/keymap/keyconf_fullbdv.yaml b/src/main/resources/org/mastodon/ui/keymap/keyconf_fullbdv.yaml
index 966707fc0..d58c3070a 100644
--- a/src/main/resources/org/mastodon/ui/keymap/keyconf_fullbdv.yaml
+++ b/src/main/resources/org/mastodon/ui/keymap/keyconf_fullbdv.yaml
@@ -211,10 +211,6 @@
   action: go to bookmark rotation
   contexts: [bdv]
   triggers: [O]
-- !mapping
-  action: brightness settings
-  contexts: [bdv]
-  triggers: [S]
 - !mapping
   action: save settings
   contexts: [bdv]
diff --git a/src/main/resources/org/mastodon/ui/keymap/keyconf_mastodon.yaml b/src/main/resources/org/mastodon/ui/keymap/keyconf_mastodon.yaml
index 657c25a4e..3fefa1f2a 100644
--- a/src/main/resources/org/mastodon/ui/keymap/keyconf_mastodon.yaml
+++ b/src/main/resources/org/mastodon/ui/keymap/keyconf_mastodon.yaml
@@ -43,10 +43,6 @@
   action: bdv click select
   contexts: [bdv]
   triggers: [button1]
-- !mapping
-  action: brightness settings
-  contexts: [bdv]
-  triggers: [S]
 - !mapping
   action: close dialog window
   contexts: [mastodon]