diff --git a/src/main.nf b/src/main.nf
index f0214c9d25467239934dbf5d0697d46400b6b0a7..68b34e3ac463079dcc59e603ab437acfb5579892 100644
--- a/src/main.nf
+++ b/src/main.nf
@@ -8,7 +8,6 @@ params.kmer_size = 31
 include { SPLIT } from "./modules/split"
 include { FASTKMERS } from "./modules/fastkmers"
 include { MERGEKMER } from "./modules/mergekmer"
-include { MERGEKMER as MERGEKMER2 } from "./modules/mergekmer"
 include { COLLATEKMER } from "./modules/mergekmer"
 
 
@@ -25,7 +24,6 @@ Channel.fromPath( file(params.csv) )
 workflow {
   SPLIT(fastq.r1.mix(fastq.r2))
   FASTKMERS(SPLIT.out.fastq.transpose())
-  MERGEKMER(FASTKMERS.out.csv.groupTuple(size: 10))
-  MERGEKMER2(MERGEKMER.out.csv.groupTuple())
-  COLLATEKMER(MERGEKMER2.out.csv.map{it -> it[1]}.collect())
+  MERGEKMER(FASTKMERS.out.csv.groupTuple())
+  COLLATEKMER(MERGEKMER.out.csv.map{it -> it[1]}.collect())
 }