diff --git a/steps/DP3.Selector.cwl b/steps/DP3.Selector.cwl
index 28c5d866b55fc365774eeb593ebe5d807309ff8d..b50754a85ab040136df19917a0e01a5464e8c7c9 100755
--- a/steps/DP3.Selector.cwl
+++ b/steps/DP3.Selector.cwl
@@ -16,7 +16,7 @@ outputs:
     type: Any
 expression: |
   $(
-    {'selected_steps': inputs.selector ? inputs.a_steps : inputs.b_steps}
+    {'selected_steps': inputs.select_a ? inputs.a_steps : inputs.b_steps}
   )
 label: Selector