diff --git a/src/.docker_modules/kb/0.26.0/Dockerfile b/src/.docker_modules/kb/0.26.0/Dockerfile
new file mode 100644
index 0000000000000000000000000000000000000000..920dc9e075e6fa54b4e290e194ba7b60507338c3
--- /dev/null
+++ b/src/.docker_modules/kb/0.26.0/Dockerfile
@@ -0,0 +1,7 @@
+FROM python:3.9-slim 
+
+ENV KB_VERSION="0.26.0"
+
+RUN pip3 install kb-python==${KB_VERSION}
+
+CMD [ "bash" ]
diff --git a/src/.docker_modules/kb/0.26.0/docker_init.sh b/src/.docker_modules/kb/0.26.0/docker_init.sh
new file mode 100755
index 0000000000000000000000000000000000000000..347c10e4aa1ac05d130b860b10024b016fdc4eef
--- /dev/null
+++ b/src/.docker_modules/kb/0.26.0/docker_init.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+docker pull lbmc/kb:0.26.0
+docker build src/.docker_modules/kb/0.26.0 -t 'lbmc/kb:0.26.0'
+docker push lbmc/kb:0.26.0
diff --git a/src/nf_modules/kallisto/main.nf b/src/nf_modules/kallisto/main.nf
index b4d59dcae6c3be7054bad65b14176c49e4ae322d..8d3fe1d3a9bbdd1435863f93ab0b74c1d7bcd994 100644
--- a/src/nf_modules/kallisto/main.nf
+++ b/src/nf_modules/kallisto/main.nf
@@ -62,6 +62,6 @@ process mapping_fastq {
   mkdir ${file_prefix}
   kallisto quant -i ${index} -t ${task.cpus} --single \
   ${params.mapping_fastq} -o ${file_prefix} \
-  ${reads} &> ${file_prefix}_kallisto_mapping_report.txt
+  ${reads[0]} &> ${file_prefix}_kallisto_mapping_report.txt
   """
 }