diff --git a/src/button/ReactionToggleButton.module.css b/src/button/ReactionToggleButton.module.css
index 5ee058e5..37c7a50b 100644
--- a/src/button/ReactionToggleButton.module.css
+++ b/src/button/ReactionToggleButton.module.css
@@ -44,6 +44,7 @@
   width: 1.4em;
   height: 1.4em;
   border-radius: var(--cpd-radius-pill-effect);
+  border: none;
 }
 
 @media (max-width: 800px) {