diff --git a/cwl/steps/fetch_data.cwl b/cwl/steps/fetch_data.cwl
index 128b7f8b0512f3a08edfdfc8120cf16b45b23f79..9c004ef133191912b15d42ca283453ac7900536b 100644
--- a/cwl/steps/fetch_data.cwl
+++ b/cwl/steps/fetch_data.cwl
@@ -37,7 +37,7 @@ outputs:
   type: File[]
   secondaryFiles:
   - pattern: $(self.nameroot).raw
-    required: true
+    required: false
   outputBinding:
     glob:
     - out/*/Dynspec_*.h5