diff --git a/main.nf b/main.nf
index 4bb7bef..6ab24ac 100644
--- a/main.nf
+++ b/main.nf
@@ -1724,7 +1724,7 @@ process PFT_Tracking_Maps {
     set sid, "${sid}__interface.nii.gz" into interface_for_pft_seeding_mask
 
     when:
-        params.run_pft_tracking
+        params.run_pft_tracking || params.run_pft_mask
 
     script:
     """
@@ -1752,7 +1752,7 @@ process PFT_Seeding_Mask {
     set sid, "${sid}__pft_seeding_mask.nii.gz" into seeding_mask_for_pft
 
     when:
-        params.run_pft_tracking
+        params.run_pft_tracking || params.run_pft_mask
 
     script:
     if (params.pft_seeding_mask_type == "wm")
@@ -1831,7 +1831,7 @@ process Local_Tracking_Mask {
     set sid, "${sid}__local_tracking_mask.nii.gz" into tracking_mask_for_local
 
     when:
-        params.run_local_tracking
+        params.run_local_tracking || params.run_local_mask
 
     script:
     if (params.local_tracking_mask_type == "wm")
@@ -1862,7 +1862,7 @@ process Local_Seeding_Mask {
     set sid, "${sid}__local_seeding_mask.nii.gz" into tracking_seeding_mask_for_local
 
     when:
-        params.run_local_tracking
+        params.run_local_tracking || params.run_local_mask
 
     script:
     if (params.local_seeding_mask_type == "wm")
diff --git a/nextflow.config b/nextflow.config
index e0d0f4f..114f4bc 100644
--- a/nextflow.config
+++ b/nextflow.config
@@ -96,6 +96,7 @@ params {
         min_md_in_ventricle=0.003
 
     //**PFT seeding mask**//
+        run_pft_mask=false
         pft_seeding_mask_type="wm"
         pft_fa_seeding_mask_threshold=0.1
 
@@ -118,6 +119,7 @@ params {
         pft_random_seed=0
 
     //**Local seeding mask**//
+        run_local_mask=false
         local_seeding_mask_type="wm"
         local_fa_seeding_mask_threshold=0.1
 
@@ -223,6 +225,13 @@ profiles {
         }
     }
 
+    only_preprocessing {
+        params.run_local_tracking=false
+        params.run_pft_tracking=false
+        params.run_local_mask=true
+        params.run_pft_mask=true
+    }
+
     macos {
             process.scratch="/tmp"
     }