diff --git a/workflow/rules/fastp.smk b/workflow/rules/fastp.smk
index afd777c..7fa5dfb 100644
--- a/workflow/rules/fastp.smk
+++ b/workflow/rules/fastp.smk
@@ -13,7 +13,7 @@ rule fastp_trimming_pair_ended:
             "results/QC/report_pe/{sample}.html",
             caption="../report/fastp.rst",
             category="Quality Controls",
-            subcategory="Trimming"
+            subcategory="Trimming",
         ),
         json=temp("tmp/fastp/report_pe/{sample}.json"),
     log: