diff --git a/package.json b/package.json
index 9ae90fb..71eed36 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "appstate",
-  "version": "2.1.1",
+  "version": "2.1.2",
   "description": "Barebone state manager implementation based on Cerebral signals conception",
   "main": "./src/appstate.js",
   "devDependencies": {
diff --git a/src/appstate.js b/src/appstate.js
index 4f39a1c..9aa4b92 100755
--- a/src/appstate.js
+++ b/src/appstate.js
@@ -509,7 +509,9 @@ function transformSyncBranch (action, parentAction, path, actions, isSync) {
  * @param {Array} actions
  */
 function analyze (actions) {
-
+  if (!Array.isArray(actions)) {
+    throw new Error('State: Signal actions should be array');
+  }
 
   actions.forEach((action, index) => {
     if (typeof action === 'undefined' || typeof action === 'string') {