diff --git a/web/modals/threads/confirm-leave-thread-modal.react.js b/web/modals/threads/confirm-leave-thread-modal.react.js
--- a/web/modals/threads/confirm-leave-thread-modal.react.js
+++ b/web/modals/threads/confirm-leave-thread-modal.react.js
@@ -18,7 +18,12 @@
   const { uiName } = threadInfo;
 
   return (
-    <Modal name="Leaving channel" icon="warning-circle" onClose={onClose}>
+    <Modal
+      size="fit-content"
+      name="Leaving channel"
+      icon="warning-circle"
+      onClose={onClose}
+    >
       <div className={css.container}>
         <p>
           {'Are you sure you want to leave "'}