diff --git a/inference/core/interfaces/http/http_api.py b/inference/core/interfaces/http/http_api.py
index 95eac9057c..c5fef98681 100644
--- a/inference/core/interfaces/http/http_api.py
+++ b/inference/core/interfaces/http/http_api.py
@@ -725,9 +725,13 @@ def process_workflow_inference_request(
                 prevent_local_images_loading=True,
                 profiler=profiler,
             )
+            is_preview = False
+            if hasattr(workflow_request, "is_preview"):
+                is_preview = workflow_request.is_preview
             workflow_results = execution_engine.run(
                 runtime_parameters=workflow_request.inputs,
                 serialize_results=True,
+                is_preview=is_preview,
             )
             with profiler.profile_execution_phase(
                 name="workflow_results_filtering",