diff --git a/lofar-cwl/steps/LoSoTo.ClockTec.cwl b/lofar-cwl/steps/LoSoTo.ClockTec.cwl
index 2159d2d68863946e056eb37fd22b13e4e3d696a2..a328b6bef5d6e5fe25a636b50417220397c5f460 100644
--- a/lofar-cwl/steps/LoSoTo.ClockTec.cwl
+++ b/lofar-cwl/steps/LoSoTo.ClockTec.cwl
@@ -40,6 +40,18 @@ inputs:
   - id: soltab
     type: string
     doc: "Solution table"
+  - id: clocksoltabOut
+    doc: output soltab name for clock
+    type: string?
+  - id: tecsoltabOut
+    doc: output soltab name for tec
+    type: string?
+  - id: offsetsoltabOut
+    doc: output soltab name for phase offset
+    type: string?
+  - id: tec3rdsoltabOut
+    doc: output soltab name for tec3rd offset
+    type: string?
   - id: flagBadChannels
     type: boolean?
     doc: Detect and remove bad channel before fitting, by default True.