diff --git a/bower.json b/bower.json
index 6d73ad1..a2a0f08 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "object.observe",
-  "version": "0.2.5",
+  "version": "0.2.6",
   "homepage": "https://github.com/MaxArt2501/object-observe",
   "authors": [
     "Massimo Artizzu <maxart.x@gmail.com>"
diff --git a/dist/object-observe-lite.js b/dist/object-observe-lite.js
index 1cae1b6..973dfcb 100644
--- a/dist/object-observe-lite.js
+++ b/dist/object-observe-lite.js
@@ -348,9 +348,10 @@ Object.observe || (function(O, A, root, _undefined) {
          * @param {Handler} handler
          */
         deliverHandlerRecords = function(hdata, handler) {
-            if (hdata.changeRecords.length) {
-                handler(hdata.changeRecords);
+            var records = hdata.changeRecords;
+            if (records.length) {
                 hdata.changeRecords = [];
+                handler(records);
             }
         },
 
diff --git a/dist/object-observe-lite.min.js b/dist/object-observe-lite.min.js
index 2608802..8b9cca0 100644
--- a/dist/object-observe-lite.min.js
+++ b/dist/object-observe-lite.min.js
@@ -1,2 +1,2 @@
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\ No newline at end of file
diff --git a/dist/object-observe-lite.min.map b/dist/object-observe-lite.min.map
index 98c4bec..8dc027d 100644
--- a/dist/object-observe-lite.min.map
+++ b/dist/object-observe-lite.min.map
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\ No newline at end of file
diff --git a/dist/object-observe.js b/dist/object-observe.js
index 568190f..071f179 100644
--- a/dist/object-observe.js
+++ b/dist/object-observe.js
@@ -512,9 +512,10 @@ Object.observe || (function(O, A, root, _undefined) {
          * @param {Handler} handler
          */
         deliverHandlerRecords = function(hdata, handler) {
-            if (hdata.changeRecords.length) {
-                handler(hdata.changeRecords);
+            var records = hdata.changeRecords;
+            if (records.length) {
                 hdata.changeRecords = [];
+                handler(records);
             }
         },
 
diff --git a/dist/object-observe.min.js b/dist/object-observe.min.js
index 0199056..e00549f 100644
--- a/dist/object-observe.min.js
+++ b/dist/object-observe.min.js
@@ -1,2 +1,2 @@
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i=t.length;n&&i--;)null!==t[i]&&(m(e,r,{name:t[i],type:"delete",object:e,oldValue:r.values[i]},o),r.properties.splice(i,1),r.values.splice(i,1),n--)};return function(r,o,i){if(r.handlers.size&&!r.frozen){var s,c,f,h,b,d,v,g,y=r.values,j=r.descriptors,w=0;if(r.extensible)if(s=r.properties.slice(),c=s.length,f=u(o),j){for(;w<f.length;)b=f[w++],h=a(s,b),g=l(o,b),-1===h?(m(o,r,{name:b,type:"add",object:o},i),r.properties.push(b),y.push(o[b]),j.push(g)):(s[h]=null,c--,t(o,r,h,i,g));n(o,s,c,r,i),e.isExtensible(o)||(r.extensible=!1,m(o,r,{type:"preventExtensions",object:o},i),r.frozen=e.isFrozen(o))}else{for(;w<f.length;)b=f[w++],h=a(s,b),d=o[b],-1===h?(m(o,r,{name:b,type:"add",object:o},i),r.properties.push(b),y.push(d)):(s[h]=null,c--,t(o,r,h,i));n(o,s,c,r,i)}else 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o=i.get(n);o||i.set(n,o={observed:f(),changeRecords:[]}),o.observed.set(e,{acceptList:r.slice(),data:t}),t.handlers.set(n,o)},m=function(e,t,n,r){t.handlers.forEach(function(t){var o=t.observed.get(e).acceptList;("string"!=typeof r||-1===a(o,r))&&a(o,n.type)>-1&&t.changeRecords.push(n)})};o=f(),i=f(),e.observe=function(t,n,o){if(!t||"object"!=typeof t&&"function"!=typeof t)throw new TypeError("Object.observe cannot observe non-object");if("function"!=typeof n)throw new TypeError("Object.observe cannot deliver to non-function");if(e.isFrozen&&e.isFrozen(n))throw new TypeError("Object.observe cannot deliver to a frozen function object");if(o===r)o=s;else if(!o||"object"!=typeof o)throw new TypeError("Third argument to Object.observe must be an array of strings.");return b(t,n,o),t},e.unobserve=function(e,t){if(null===e||"object"!=typeof e&&"function"!=typeof e)throw new TypeError("Object.unobserve cannot unobserve non-object");if("function"!=typeof t)throw new TypeError("Object.unobserve 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diff --git a/dist/object-observe.min.map b/dist/object-observe.min.map
index fd38a09..8bd9580 100644
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\ No newline at end of file
diff --git a/package.json b/package.json
index 7451705..04ad80f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "object.observe",
-  "version": "0.2.5",
+  "version": "0.2.6",
   "description": "Object.observe polyfill based on ES7 spec",
   "main": "dist/object-observe.js",
   "directories": {
diff --git a/test/index.html b/test/index.html
index 0061858..ea5552c 100644
--- a/test/index.html
+++ b/test/index.html
@@ -14,4 +14,4 @@
         <script src="tests.js"></script>
         <script>mocha.run()</script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/test/tests.js b/test/tests.js
index d83e555..25d4055 100644
--- a/test/tests.js
+++ b/test/tests.js
@@ -612,6 +612,26 @@ describe("Object.deliverChangeRecords", function() {
         Object.unobserve(obj2, handler);
         done();
     });
+
+    it("should not deliver changes already being under delivery", function (done) {
+        function handler() {
+            try {
+                expect(tested).to.be(false);
+                tested = true;
+
+                Object.deliverChangeRecords(handler);
+            } catch (e) { done(e); }
+        };
+
+        var obj = { value: 1 },
+            tested = false;
+        Object.observe(obj, handler);
+
+        obj.value++;
+        Object.deliverChangeRecords(handler);
+
+        done();
+    });
 });
 
 describe("Object.getNotifier", function() {