diff --git a/src/js/easymde.js b/src/js/easymde.js
index 3ee79e1..5016318 100644
--- a/src/js/easymde.js
+++ b/src/js/easymde.js
@@ -231,6 +231,12 @@ function createToolbarButton(options, enableActions, enableTooltips, shortcuts,
         }
     }
 
+    if (options.attributes) {
+        for (var attribute in options.attributes) {
+            el.setAttribute(attribute, options.attributes[attribute]);
+        }
+    }
+
     if (options.noDisable) {
         el.classList.add('no-disable');
     }