diff --git a/modules/local/bwa-mem2/mem/main.nf b/modules/local/bwa-mem2/mem/main.nf
index 2a8ac501..d12f7356 100644
--- a/modules/local/bwa-mem2/mem/main.nf
+++ b/modules/local/bwa-mem2/mem/main.nf
@@ -33,6 +33,7 @@ process BWAMEM2_ALIGN {
     bwa-mem2 mem \\
         ${args} \\
         -Y \\
+        -K 100000000 \\
         -R '${read_group_tag}' \\
         -t ${task.cpus} \\
         ${genome_fasta} \\