diff --git a/src/Dam_ID_analysis.nf b/src/Dam_ID_analysis.nf
index 6ef040e63aeb8d1c1d41913526efa8b50b9dcae1..8bfec47c3655b1b4e175a8e94cfaacfac2acb6da 100644
--- a/src/Dam_ID_analysis.nf
+++ b/src/Dam_ID_analysis.nf
@@ -40,7 +40,7 @@ workflow {
     fastp(reads)
     //mapping
     index_fasta(reads)
-    mapping_fastq(index_fasta.out.out.index.collect(), 
+    mapping_fastq(index_fasta.out.reads, 
                   genome)
 }