diff --git a/lib/main.js b/lib/main.js
index e500dbd..e0702c6 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -2,6 +2,14 @@
 
 if (typeof document !== "undefined") {
   (function() {
+
+    if (typeof minispade !== "undefined") {
+      if (window.console && window.console.warn) {
+        console.warn("Minispade included multiple times. Skipping extra setup.");
+      }
+      return;
+    }
+
     minispade = {
       root: null,
       modules: {},