diff --git a/src/main.nf b/src/main.nf
index 848adb8c4c4244ce2317e90755d15b07d535c857..2c6002524a2ff254f252173e5ecf3c30f55193fa 100644
--- a/src/main.nf
+++ b/src/main.nf
@@ -35,7 +35,7 @@ workflow {
   COLLATEKMER(MERGEKMER.out.csv.map{it -> [it[0].specie, it[1]] }.groupTuple())
   KMERCLUST_LOAD(COLLATEKMER.out.csv, params_csv.collect())
   KMERCLUST_BOOT(Channel.of(1..params.bootstrap).combine(KMERCLUST_LOAD.out.rdata))
-  KMERCLUST_CLUST(Channel.of(["XY", "XO", "OO"]).combine(KMERCLUST_LOAD.out.rdata))
+  KMERCLUST_CLUST(Channel.from(["XY", "XO", "OO"]).combine(KMERCLUST_LOAD.out.rdata))
   KMERCLUST_MERGE(KMERCLUST_BOOT.out.rdata.groupTuple())
   KMERCLUST_PLOT(KMERCLUST_MERGE.out.rdata.mix(KMERCLUST_LOAD.out.rdata).groupTuple())
 }