diff --git a/src/nf_modules/gffread/main.nf b/src/nf_modules/gffread/main.nf
index e573adf169ab4fcfc880b5ee3904b568bed7b916..a631660607911e7c2e9d67e9a18d2809828a4450 100644
--- a/src/nf_modules/gffread/main.nf
+++ b/src/nf_modules/gffread/main.nf
@@ -54,7 +54,8 @@ process spliced_cds {
     file_prefix = file_id
   }
   """
-gffread -x -M - -g ${fasta} ${gtf} \
+gzip -dc ${fasta} > ${fasta.simpleName}_un.fasta
+gffread -x -M - -g ${fasta.simpleName}_un.fasta ${gtf} \
   > ${file_prefix}.fasta
   """
 }
\ No newline at end of file