diff --git a/lib/entity/entity.config.ts b/lib/entity/entity.config.ts
index 93e1d26..885bca6 100644
--- a/lib/entity/entity.config.ts
+++ b/lib/entity/entity.config.ts
@@ -14,6 +14,8 @@ export class ModelEntity extends EntityConfigBase{
 		super(config, entityConstructor);
 
 		this.loadAll = config.loadAll === true;
+		if (!this.endpoint && !this.values)
+			throw new Error(`Can't create entity ${this.entityConstructor.name}, no endpoint or values defined.`);
 	}
 }
 
diff --git a/package.json b/package.json
index e72fc70..2df8b6f 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "systemjs": ">=0.20.12",
     "typescript": "^2.4.2",
     "zone.js": ">=0.8.7",
-	  "run-sequence": "^2.2.0"
+    "run-sequence": "^2.2.0"
   },
   "peerDependencies": {
     "rxjs": ">=5.2.0",