diff --git a/pipeline.wdl b/pipeline.wdl
index 35dcb84..1f4a79c 100644
--- a/pipeline.wdl
+++ b/pipeline.wdl
@@ -1,4 +1,3 @@
-
 import "./wdl/qc.wdl"
 import "./wdl/alignment.wdl"
 import "./wdl/call_mutation.wdl"
@@ -8,10 +7,10 @@ import "./wdl/cnv.wdl"
 import "./wdl/msi.wdl"
 import "./wdl/chemo.wdl"
 import "./wdl/hereditary.wdl"
+import "./wdl/pollution.wdl"
 import "./wdl/tmb.wdl"
 import "./wdl/postprocess.wdl"
 
-
 workflow pipeline {
 
     String tumor