diff --git a/workflows/params_segment_macaque_ants_skull.json b/workflows/params_segment_macaque_ants_skull.json
index 18a30f2..44d3353 100755
--- a/workflows/params_segment_macaque_ants_skull.json
+++ b/workflows/params_segment_macaque_ants_skull.json
@@ -176,30 +176,30 @@
         }
     },
     "skull_ct_pipe":
+    {
+        "ct_skull_auto_mask":
         {
-            "ct_skull_auto_mask":
-            {
-                "kmeans": false,
-                "sample_bins": 30,
-                "distance": 10,
-            	"operation": "higher",
-            	"index": 3
-            },
-            "ct_skull_dilate":
-            {
-                "operation" : "modal",
-                "kernel_shape" : "boxv",
-                "kernel_size" : 3.0
-            },
-            "ct_skull_erode":
-            {
-                "kernel_shape" : "boxv",
-                "kernel_size" : 3.0
-            },
-            "ct_skull_fov":
-            {
-                "brainsize" : 65
-            }
+            "kmeans": false,
+            "sample_bins": 30,
+            "distance": 10,
+            "operation": "higher",
+            "index": 3
+        },
+        "ct_skull_dilate":
+        {
+            "operation" : "modal",
+            "kernel_shape" : "boxv",
+            "kernel_size" : 3.0
+        },
+        "ct_skull_erode":
+        {
+            "kernel_shape" : "boxv",
+            "kernel_size" : 3.0
+        },
+        "ct_skull_fov":
+        {
+            "brainsize" : 65
+        }
     },
     "angio_pipe":
     {
@@ -213,17 +213,6 @@
             "img_type": 3,
             "output_biascorrected": true,
             "output_biasfield": true
-        },
-        "angio_dilate":
-        {
-            "operation": "modal",
-            "kernel_shape": "boxv",
-            "kernel_size": 5.0
-        },
-        "angio_erode":
-        {
-            "kernel_shape": "boxv",
-            "kernel_size": 5.0
         }
     }
 }