diff --git a/src/nf_modules/macs2/main.nf b/src/nf_modules/macs2/main.nf
index 2d437c3e6ee4b1e9e6a219f1301bef699d4fe036..57bf3d7ea32f69c4f34379e2e700978d82343102 100644
--- a/src/nf_modules/macs2/main.nf
+++ b/src/nf_modules/macs2/main.nf
@@ -2,6 +2,7 @@ version = "2.1.2"
 container_url = "lbmc/macs2:${version}"
 
 params.macs_gsize=3e9
+params.macs_mfold="5 50"
 
 process peak_calling {
   container = "${container_url}"
@@ -24,6 +25,7 @@ macs2 callpeak \
   --control ${bam_control} \
   --keep-dup all \
   --name ${bam_ip.simpleName} \
+  --mfold ${params.macs_mfold} \
   --gsize ${params.macs_gsize} 2> \
   ${bam_ip.simpleName}_macs2_report.txt
 
@@ -59,6 +61,7 @@ macs2 callpeak \
   --control ${bg_control.simpleName}.bed \
   --keep-dup all \
   --name ${bg_ip.simpleName} \
+  --mfold ${params.macs_mfold} \
   --gsize ${params.macs_gsize} 2> \
   ${bg_ip.simpleName}_macs2_report.txt