diff --git a/src/Umbraco.Infrastructure/PropertyEditors/ValueConverters/BlockListPropertyValueConverter.cs b/src/Umbraco.Infrastructure/PropertyEditors/ValueConverters/BlockListPropertyValueConverter.cs
index 334b1f1aa3..52efe3755a 100644
--- a/src/Umbraco.Infrastructure/PropertyEditors/ValueConverters/BlockListPropertyValueConverter.cs
+++ b/src/Umbraco.Infrastructure/PropertyEditors/ValueConverters/BlockListPropertyValueConverter.cs
@@ -113,7 +113,7 @@ public class BlockListPropertyValueConverter : BlockPropertyValueConverterBase<B
 
     /// <inheritdoc />
     public Type GetDeliveryApiPropertyValueType(IPublishedPropertyType propertyType)
-        => typeof(IEnumerable<ApiBlockListModel>);
+        => typeof(ApiBlockListModel);
 
     /// <inheritdoc />
     public object? ConvertIntermediateToDeliveryApiObject(IPublishedElement owner, IPublishedPropertyType propertyType, PropertyCacheLevel referenceCacheLevel, object? inter, bool preview, bool expanding)