diff --git a/src/storage/routing/PreferenceSupport.ts b/src/storage/routing/PreferenceSupport.ts
index 67d1c1d7a..164834631 100644
--- a/src/storage/routing/PreferenceSupport.ts
+++ b/src/storage/routing/PreferenceSupport.ts
@@ -14,8 +14,8 @@ export class PreferenceSupport {
   private readonly preferences: RepresentationPreferences;
   private readonly converter: RepresentationConverter;
 
-  public constructor(preferences: RepresentationPreferences, converter: RepresentationConverter) {
-    this.preferences = preferences;
+  public constructor(type: string, converter: RepresentationConverter) {
+    this.preferences = { type: [{ value: type, weight: 1 }]};
     this.converter = converter;
   }
 
diff --git a/test/unit/storage/routing/PreferenceSupport.test.ts b/test/unit/storage/routing/PreferenceSupport.test.ts
index 4498e3f53..4a8ecb3ee 100644
--- a/test/unit/storage/routing/PreferenceSupport.test.ts
+++ b/test/unit/storage/routing/PreferenceSupport.test.ts
@@ -6,16 +6,16 @@ import { PreferenceSupport } from '../../../../src/storage/routing/PreferenceSup
 import { UnsupportedHttpError } from '../../../../src/util/errors/UnsupportedHttpError';
 
 describe('A PreferenceSupport', (): void => {
-  let preferences: RepresentationPreferences;
+  const type = 'internal/quads';
+  const preferences: RepresentationPreferences = { type: [{ value: type, weight: 1 }]};
   let converter: RepresentationConverter;
   let support: PreferenceSupport;
   const identifier: ResourceIdentifier = 'identifier' as any;
   const representation: Representation = 'representation' as any;
 
   beforeEach(async(): Promise<void> => {
-    preferences = { type: []};
     converter = { canHandle: jest.fn() } as any;
-    support = new PreferenceSupport(preferences, converter);
+    support = new PreferenceSupport(type, converter);
   });
 
   it('returns true if the converter supports the input.', async(): Promise<void> => {