diff --git a/blueprints/module-unification-app/files/config/environment.js b/blueprints/module-unification-app/files/config/environment.js
index 2c1ef03933..95ed4dbf7f 100644
--- a/blueprints/module-unification-app/files/config/environment.js
+++ b/blueprints/module-unification-app/files/config/environment.js
@@ -15,7 +15,7 @@ module.exports = function(environment) {
       FEATURES: {
         // Here you can enable experimental features on an ember canary build
         // e.g. 'with-controller': true
-        'ember-module-unification': true
+        EMBER_MODULE_UNIFICATION: true
       },
       EXTEND_PROTOTYPES: {
         // Prevent Ember Data from overriding Date.parse.
diff --git a/tests/fixtures/module-unification-addon/npm/tests/dummy/config/environment.js b/tests/fixtures/module-unification-addon/npm/tests/dummy/config/environment.js
index 2f52c7655e..d7c3b425ad 100644
--- a/tests/fixtures/module-unification-addon/npm/tests/dummy/config/environment.js
+++ b/tests/fixtures/module-unification-addon/npm/tests/dummy/config/environment.js
@@ -15,7 +15,7 @@ module.exports = function(environment) {
       FEATURES: {
         // Here you can enable experimental features on an ember canary build
         // e.g. 'with-controller': true
-        'ember-module-unification': true
+        EMBER_MODULE_UNIFICATION: true
       },
       EXTEND_PROTOTYPES: {
         // Prevent Ember Data from overriding Date.parse.
diff --git a/tests/fixtures/module-unification-addon/yarn/tests/dummy/config/environment.js b/tests/fixtures/module-unification-addon/yarn/tests/dummy/config/environment.js
index 2f52c7655e..d7c3b425ad 100644
--- a/tests/fixtures/module-unification-addon/yarn/tests/dummy/config/environment.js
+++ b/tests/fixtures/module-unification-addon/yarn/tests/dummy/config/environment.js
@@ -15,7 +15,7 @@ module.exports = function(environment) {
       FEATURES: {
         // Here you can enable experimental features on an ember canary build
         // e.g. 'with-controller': true
-        'ember-module-unification': true
+        EMBER_MODULE_UNIFICATION: true
       },
       EXTEND_PROTOTYPES: {
         // Prevent Ember Data from overriding Date.parse.