diff --git a/romancal/lib/suffix.py b/romancal/lib/suffix.py
index 6df60bac4..7969306d2 100644
--- a/romancal/lib/suffix.py
+++ b/romancal/lib/suffix.py
@@ -54,7 +54,6 @@
     "jump",
     "rampfit",
     "saturation",
-    "sourcedetection",
     "dark_current",
     "darkcurrent",
     "outlier_detection",
@@ -91,8 +90,6 @@
     "linearitystep",
     "dark_current",
     "jump",
-    "sourcedetection",
-    "sourcedetectionstep",
     "tweakregstep",
     "outlierdetectionstep",
     "skymatchstep",