diff --git a/lib/deserializer-utils.js b/lib/deserializer-utils.js
index 1265fd4..b06796e 100644
--- a/lib/deserializer-utils.js
+++ b/lib/deserializer-utils.js
@@ -6,6 +6,9 @@ var _extend = require('lodash/extend');
 var _transform = require('lodash/transform');
 var Inflector = require('./inflector');
 
+const ancestrySeparator = ":";
+const idSeparator = ";";
+
 module.exports = function (jsonapi, data, opts) {
   var alreadyIncluded = [];
 
@@ -36,7 +39,7 @@ module.exports = function (jsonapi, data, opts) {
       if (included) {
         // To prevent circular references, check if the record type
         // has already been processed in this thread
-        if (ancestry.indexOf(included.type) > -1) {
+        if (ancestry.indexOf(included.type + idSeparator) > -1) {
           return Promise
             .all([extractAttributes(included)])
             .then(function (results) {
@@ -47,7 +50,7 @@ module.exports = function (jsonapi, data, opts) {
         }
 
         return Promise
-          .all([extractAttributes(included), extractRelationships(included, ancestry + ':' + included.type + included.id)])
+          .all([extractAttributes(included), extractRelationships(included, ancestry + ancestrySeparator + included.type + idSeparator +  included.id)])
           .then(function (results) {
             var attributes = results[0];
             var relationships = results[1];
@@ -146,7 +149,7 @@ module.exports = function (jsonapi, data, opts) {
 
   this.perform = function () {
     return Promise
-      .all([extractAttributes(data), extractRelationships(data, data.type + data.id)])
+      .all([extractAttributes(data), extractRelationships(data, data.type + ancestrySeparator + data.id)])
       .then(function (results) {
         var attributes = results[0];
         var relationships = results[1];
diff --git a/test/deserializer.js b/test/deserializer.js
index bd5ae42..bcda428 100644
--- a/test/deserializer.js
+++ b/test/deserializer.js
@@ -1394,6 +1394,55 @@ describe('JSON API Deserializer', function () {
         });
       });
     });
+
+    describe("With relationships using similar type names", function () {
+      it("should return all data without circular error", function (done) {
+        var dataSet = {
+          data: {
+            type: "productsearch",
+            id: "47",
+            attributes: {
+              sku: "7TY55",
+            },
+            relationships: {
+              product: { data: { type: "products", id: "122" } },
+            },
+          },
+          included: [
+            {
+              type: "images",
+              id: "49",
+              attributes: {
+                mimeType: "image/jpeg",
+              },
+              relationships: {
+                product: { data: { type: "products", id: "122" } },
+              },
+            },
+            {
+              type: "products",
+              id: "122",
+              attributes: {
+                sku: "7TY55"
+              },
+              relationships: {
+                image: { data: { type: "images", id: "49" } },
+              },
+            },
+          ],
+        };
+
+        new JSONAPIDeserializer().deserialize(dataSet, function (err, json) {
+          expect(json).to.be.an('object').with.keys('id', 'sku', 'product');
+          expect(json.product).to.exist;
+          expect(json.product).to.be.an('object').with.keys('id', 'sku', 'image');
+          expect(json.product.image).to.exist;
+          expect(json.product.image).to.be.an('object').with.keys('id', 'mime-type', 'product');
+
+          done(null, json);
+        });
+      });
+    });
   });
 
   describe('without callback', function () {