diff --git a/js/common/tests/shell-foxx-repository.js b/js/common/tests/shell-foxx-repository.js
index e3cc48c0b6..859e8ebf63 100644
--- a/js/common/tests/shell-foxx-repository.js
+++ b/js/common/tests/shell-foxx-repository.js
@@ -123,7 +123,7 @@ function RepositoryMethodsSpec() {
         .withArguments(modelData)
         .andReturn(id_and_rev);
 
-      instance.save(model);
+      assertEqual(instance.save(model), model);
 
       model.assertIsSatisfied();
       collection.assertIsSatisfied();
@@ -167,7 +167,7 @@ function RepositoryMethodsSpec() {
         .withArguments(id, data)
         .andReturn(id_and_rev);
 
-      instance.replace(model);
+      assertEqual(instance.replace(model), model);
 
       collection.assertIsSatisfied();
       model.assertIsSatisfied();
@@ -187,7 +187,7 @@ function RepositoryMethodsSpec() {
         .withArguments(id, data)
         .andReturn(id_and_rev);
 
-      instance.replaceById(id, model);
+      assertEqual(instance.replaceById(id, model), model);
 
       collection.assertIsSatisfied();
       model.assertIsSatisfied();
diff --git a/js/server/modules/org/arangodb/foxx/repository.js b/js/server/modules/org/arangodb/foxx/repository.js
index d0a9991494..c33ca50fe6 100644
--- a/js/server/modules/org/arangodb/foxx/repository.js
+++ b/js/server/modules/org/arangodb/foxx/repository.js
@@ -105,11 +105,13 @@ _.extend(Repository.prototype, {
 /// @brief Save a model into the database
 ///
 /// Expects a model. Will set the ID and Rev on the model.
+/// Returns the model (for convenience).
 ////////////////////////////////////////////////////////////////////////////////
   save: function (model) {
     'use strict';
     var id_and_rev = this.collection.save(model.forDB());
     model.set(id_and_rev);
+    return model;
   },
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -140,6 +142,7 @@ _.extend(Repository.prototype, {
 ///
 /// Find the model in the database by its `_id` and replace it with this version.
 /// Expects a model. Sets the Revision of the model.
+/// Returns the model (for convenience).
 ////////////////////////////////////////////////////////////////////////////////
   replace: function (model) {
     'use strict';
@@ -147,6 +150,7 @@ _.extend(Repository.prototype, {
       data = model.forDB(),
       id_and_rev = this.collection.replace(id, data);
     model.set(id_and_rev);
+    return model;
   },
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -156,12 +160,14 @@ _.extend(Repository.prototype, {
 /// Find the model in the database by the given ID and replace it with the given.
 /// model.
 /// Expects a model. Sets the ID and Revision of the model.
+/// Returns the model (for convenience).
 ////////////////////////////////////////////////////////////////////////////////
   replaceById: function (id, model) {
     'use strict';
     var data = model.forDB(),
       id_and_rev = this.collection.replace(id, data);
     model.set(id_and_rev);
+    return model;
   },
 
 ////////////////////////////////////////////////////////////////////////////////