diff --git a/Resources/assets/styles/_infinite-tree.scss b/Resources/assets/styles/_infinite-tree.scss
index ea4b6359..2911ef70 100644
--- a/Resources/assets/styles/_infinite-tree.scss
+++ b/Resources/assets/styles/_infinite-tree.scss
@@ -30,6 +30,10 @@
             border: none;
         }
 
+        .btn-sm {
+            width: 1.5rem;
+        }
+
         .infinite-tree-node {
             display: flex;