diff --git a/src/nf_modules/emase-zero/main.nf b/src/nf_modules/emase-zero/main.nf
index c0191e82fb13c117257d63329f09e4dea16762d1..36ff276fb6aa556fb4b6e1ce114f313dfe378c06 100644
--- a/src/nf_modules/emase-zero/main.nf
+++ b/src/nf_modules/emase-zero/main.nf
@@ -9,7 +9,7 @@ params.count = "-m 2"
 params.count_out = ""
 workflow count {
   take:
-    bam
+    bam_idx
     gtf
     transcript_to_gene
 
@@ -18,7 +18,7 @@ workflow count {
       .ifEmpty(["NO T2G", ""])
       .set{ transcript_to_gene_optional }
     tr2g(gtf, transcript_to_gene_optional)
-    bam2ec(bam, gtf)
+    bam2ec(bam_idx, gtf)
     emase(bam2ec.out.bin, bam2ec.out.tsv, tr2g.out.t2g)
 
   emit: