diff --git a/Snakefile_atac.smk b/Snakefile_atac.smk
index b12a57261700a197f26ceade9ddfd61378a4ae74..2a47c07be432c045ccd79a037525a3390e5745bb 100755
--- a/Snakefile_atac.smk
+++ b/Snakefile_atac.smk
@@ -764,7 +764,7 @@ if len(all_peak_caller.keys()) >= 1:
     merge_peakcaller_logerr = os.path.join(analysis_dir,"13-MergePeaks/logs/{SAMPLE}_mergePeaks_{FORM}.err")
     merge_peakcaller_all = os.path.join(analysis_dir,"13-MergePeaks/concat/{SAMPLE}_all_{FORM}.bed")
     
-    # To recheck for the columns !
+    # To recheck for the columns ?
     merge_peakcaller_options = "-c 4,5,6,7,8,9,10 -o collapse,max,collapse,mean,mean,mean,max"
     # Default mode for now (genrich and lanceotron by default)
     mod = 'narrow'
@@ -772,8 +772,6 @@ if len(all_peak_caller.keys()) >= 1:
     include: os.path.join(RULES, "merge_peakcaller.rules")
     final_output.extend(expand(merge_peakcaller_output,SAMPLE=ALL_IP_PC,FORM=mod))
 
-FORMAT = [all_peak_caller[peak_caller][1] for peak_caller in all_peak_caller.keys()]
-
 #----------------------------------
 # Run differential analysis
 #----------------------------------