diff --git a/workflow/rules/somatic_variants.smk b/workflow/rules/somatic_variants.smk
index 3cc2a09..0f29083 100644
--- a/workflow/rules/somatic_variants.smk
+++ b/workflow/rules/somatic_variants.smk
@@ -84,7 +84,7 @@ rule sniffles_somatic:
     threads: 1
     shell:
         """
-        sniffles --somatic -i {input.merged_bam} --reference {input.ref} --output-rnames -v {output.vcf}
+        sniffles --mosaic -i {input.merged_bam} --reference {input.ref} --output-rnames -v {output.vcf}
         """