diff --git a/main.nf b/main.nf
index 31f73a8549e76b246fe05981c0c2735b5605090e..53a7cf217a02e4385edf51fd072eaf59997b301d 100644
--- a/main.nf
+++ b/main.nf
@@ -796,7 +796,7 @@ process generate_cool{
 
    script:
    """
-   hicpro2higlass.sh -i $vpairs -r 5000 -c ${chrsize} -n
+   hicpro2higlass.sh -p ${task.cpus} -i $vpairs -r 5000 -c ${chrsize} -n
    """
 }