diff --git a/templates/app-esm/test/helper.js b/templates/app-esm/test/helper.js
index 6fb94119..4f9a432f 100644
--- a/templates/app-esm/test/helper.js
+++ b/templates/app-esm/test/helper.js
@@ -12,7 +12,9 @@ const AppPath = path.join(__dirname, '..', 'app.js')
 // Fill in this config with all the configurations
 // needed for testing the application
 function config () {
-  return {}
+  return {
+    skipOverride: true // Register our application with fastify-plugin
+  }
 }
 
 // automatically build and tear down our instance
diff --git a/templates/app-ts-esm/test/helper.ts b/templates/app-ts-esm/test/helper.ts
index 253bcf92..1a38393e 100644
--- a/templates/app-ts-esm/test/helper.ts
+++ b/templates/app-ts-esm/test/helper.ts
@@ -15,7 +15,9 @@ const AppPath = path.join(__dirname, '..', 'src', 'app.ts')
 // Fill in this config with all the configurations
 // needed for testing the application
 async function config () {
-  return {}
+  return {
+    skipOverride: true // Register our application with fastify-plugin
+  }
 }
 
 // Automatically build and tear down our instance
diff --git a/templates/app-ts/test/helper.ts b/templates/app-ts/test/helper.ts
index 70451775..b2930b04 100644
--- a/templates/app-ts/test/helper.ts
+++ b/templates/app-ts/test/helper.ts
@@ -12,7 +12,9 @@ const AppPath = path.join(__dirname, '..', 'src', 'app.ts')
 // Fill in this config with all the configurations
 // needed for testing the application
 async function config () {
-  return {}
+  return {
+    skipOverride: true // Register our application with fastify-plugin
+  }
 }
 
 // Automatically build and tear down our instance
diff --git a/templates/app/test/helper.js b/templates/app/test/helper.js
index a5237509..c5095f06 100644
--- a/templates/app/test/helper.js
+++ b/templates/app/test/helper.js
@@ -10,7 +10,9 @@ const AppPath = path.join(__dirname, '..', 'app.js')
 // Fill in this config with all the configurations
 // needed for testing the application
 function config () {
-  return {}
+  return {
+    skipOverride: true // Register our application with fastify-plugin
+  }
 }
 
 // automatically build and tear down our instance