diff --git a/packages/celltags/src/addwidget.ts b/packages/celltags/src/addwidget.ts
index 167d199cdad6..5749b5b74138 100644
--- a/packages/celltags/src/addwidget.ts
+++ b/packages/celltags/src/addwidget.ts
@@ -36,7 +36,7 @@ export class AddWidget extends Widget {
       center: true,
       height: '18px',
       width: '18px',
-      marginLeft: '3px',s
+      marginLeft: '3px',
       marginRight: '-5px'
     });
     this.addClass('unapplied-tag');