diff --git a/test_jobs/ddecal.json b/test_jobs/ddecal.json
index 13a89c1f35db2da2d1be6966d5f213619360e514..66f549e1dea0814a6e94949caa8b12615853fe16 100644
--- a/test_jobs/ddecal.json
+++ b/test_jobs/ddecal.json
@@ -4,5 +4,6 @@
     "path": "/data/L570745_SB001_uv_MODEL.MS"
   },
   "msin_datacolumn": "DATA", 
-  "usemodelcolumn": true
+  "usemodelcolumn": true,
+  "mode": "diagonal"
 }