diff --git a/packages/core/strapi/src/Strapi.ts b/packages/core/strapi/src/Strapi.ts
index d1f7e3078d..af5cda6dfe 100644
--- a/packages/core/strapi/src/Strapi.ts
+++ b/packages/core/strapi/src/Strapi.ts
@@ -381,7 +381,8 @@ class Strapi implements StrapiI {
           numberOfComponents: _.size(this.components),
           numberOfDynamicZones: getNumberOfDynamicZones(),
           numberOfCustomControllers: Object.values<Common.Controller>(this.controllers).filter(
-            factories.isCustomController
+            // TODO: Fix this at the content API loader level to prevent future types issues
+            (controller) => controller !== undefined && factories.isCustomController(controller)
           ).length,
           environment: this.config.environment,
           // TODO: to add back
diff --git a/packages/core/strapi/src/factories.ts b/packages/core/strapi/src/factories.ts
index 798886cd55..76e6aa260d 100644
--- a/packages/core/strapi/src/factories.ts
+++ b/packages/core/strapi/src/factories.ts
@@ -43,8 +43,8 @@ const createCoreController = <
 
     Object.setPrototypeOf(userCtrl, baseController);
 
-    const isCustomController = typeof cfg !== 'undefined';
-    if (isCustomController) {
+    const isCustom = typeof cfg !== 'undefined';
+    if (isCustom) {
       Object.defineProperty(userCtrl, symbols.CustomController, {
         writable: false,
         configurable: false,