diff --git a/backend/src/Squidex.Domain.Apps.Entities/Assets/DefaultAssetFileStore.cs b/backend/src/Squidex.Domain.Apps.Entities/Assets/DefaultAssetFileStore.cs
index 8769f9d22..db4497bf0 100644
--- a/backend/src/Squidex.Domain.Apps.Entities/Assets/DefaultAssetFileStore.cs
+++ b/backend/src/Squidex.Domain.Apps.Entities/Assets/DefaultAssetFileStore.cs
@@ -115,7 +115,7 @@ namespace Squidex.Domain.Apps.Entities.Assets
         {
             if (options.FolderPerApp)
             {
-                return assetStore.DeleteByPrefixAsync($"{appId}/", ct);
+                return assetStore.DeleteByPrefixAsync($"{appId}/{id}", ct);
             }
             else
             {
diff --git a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Assets/DefaultAssetFileStoreTests.cs b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Assets/DefaultAssetFileStoreTests.cs
index d6fcf801f..863ad39f8 100644
--- a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Assets/DefaultAssetFileStoreTests.cs
+++ b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Assets/DefaultAssetFileStoreTests.cs
@@ -222,7 +222,7 @@ namespace Squidex.Domain.Apps.Entities.Assets
 
             await sut.DeleteAsync(appId, assetId, ct);
 
-            A.CallTo(() => assetStore.DeleteByPrefixAsync($"{appId}/", ct))
+            A.CallTo(() => assetStore.DeleteByPrefixAsync($"{appId}/{assetId}", ct))
                 .MustHaveHappened();
         }