diff --git a/src/IIIFPresentation/API.Tests/Integration/ModifyManifestAssetCreationTests.cs b/src/IIIFPresentation/API.Tests/Integration/ModifyManifestAssetCreationTests.cs
index 9f7b51af..8fe9e6d1 100644
--- a/src/IIIFPresentation/API.Tests/Integration/ModifyManifestAssetCreationTests.cs
+++ b/src/IIIFPresentation/API.Tests/Integration/ModifyManifestAssetCreationTests.cs
@@ -93,7 +93,7 @@ public async Task CreateManifest_BadRequest_WhenNoSpaceHeader()
         response.StatusCode.Should().Be(HttpStatusCode.BadRequest);
         var error = await response.ReadAsPresentationResponseAsync<Error>();
         error!.Detail.Should().Be("A request with assets requires the space header to be set");
-        error.ErrorTypeUri.Should().Be("http://localhost/errors/ModifyCollectionType/RequiresSpace");
+        error.ErrorTypeUri.Should().Be("http://localhost/errors/ModifyCollectionType/RequiresSpaceHeader");
     }
     
     [Fact]
diff --git a/src/IIIFPresentation/API/Features/Storage/Helpers/ErrorHelper.cs b/src/IIIFPresentation/API/Features/Storage/Helpers/ErrorHelper.cs
index a80025cf..65becbf0 100644
--- a/src/IIIFPresentation/API/Features/Storage/Helpers/ErrorHelper.cs
+++ b/src/IIIFPresentation/API/Features/Storage/Helpers/ErrorHelper.cs
@@ -60,7 +60,7 @@ public static ModifyEntityResult<T, ModifyCollectionType> ErrorCreatingSpace<T>(
     public static ModifyEntityResult<T, ModifyCollectionType> SpaceRequired<T>()
         where T : class
         => ModifyEntityResult<T, ModifyCollectionType>.Failure(
-            "A request with assets requires the space header to be set", ModifyCollectionType.RequiresSpace,
+            "A request with assets requires the space header to be set", ModifyCollectionType.RequiresSpaceHeader,
             WriteResult.BadRequest);
     
     public static ModifyEntityResult<T, ModifyCollectionType> CouldNotRetrieveAssetId<T>()
diff --git a/src/IIIFPresentation/Models/API/General/ModifyCollectionType.cs b/src/IIIFPresentation/Models/API/General/ModifyCollectionType.cs
index ffb1e6d0..bb791d13 100644
--- a/src/IIIFPresentation/Models/API/General/ModifyCollectionType.cs
+++ b/src/IIIFPresentation/Models/API/General/ModifyCollectionType.cs
@@ -13,7 +13,7 @@ public enum ModifyCollectionType
     ParentMustBeStorageCollection = 9,
     CannotChangeCollectionType = 10,
     ErrorCreatingSpace = 11,
-    RequiresSpace = 12,
+    RequiresSpaceHeader = 12,
     CouldNotRetrieveAssetId = 13,
     DlcsException = 14,
     ValidationFailed = 15,