diff --git a/app/javascript/flavours/glitch/styles/components/composer.scss b/app/javascript/flavours/glitch/styles/components/composer.scss
index 96ea096e1..55b1fc599 100644
--- a/app/javascript/flavours/glitch/styles/components/composer.scss
+++ b/app/javascript/flavours/glitch/styles/components/composer.scss
@@ -206,7 +206,7 @@
 
     sub {
       font-size: smaller;
-      text-align: sub;
+      vertical-align: sub;
     }
 
     ul, ol {