diff --git a/app/javascript/flavours/glitch/styles/mastodon-light.scss b/app/javascript/flavours/glitch/styles/mastodon-light.scss
index 46f88c994..029d5dde2 100644
--- a/app/javascript/flavours/glitch/styles/mastodon-light.scss
+++ b/app/javascript/flavours/glitch/styles/mastodon-light.scss
@@ -122,6 +122,8 @@ $account-background-color: white;
   .composer--spoiler input, .composer--textarea textarea {
     color: darken($ui-base-color, 80%);
 
+    &:disabled { background: darken($simple-background-color, 10%) }
+
     &::placeholder {
       color: darken($ui-base-color, 70%);
     }