diff --git a/.drone.yml b/.drone.yml
index f7c08f5..876982f 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -5,12 +5,15 @@ name: default
 
 steps:
 - name: pandoc
-  image: pandoc:2.14
-  commands: ./build-pandoc latex > user-manual.tex
+  image: pandoc/alpine:2.14
+  commands:
+    - ls
+    - sh build-pandoc.sh latex > user-manual.tex
 
 - name: build-latex
   image: ghcr.io/xu-cheng/texlive-full:latest
-  commands: latexmk -pdf -file-line-error -halt-on-error -interaction=nonstopmode -xelatex user-manual.tex
+  commands:
+    - latexmk -pdf -file-line-error -halt-on-error -interaction=nonstopmode -xelatex user-manual.tex
 
 - name: release
   image: plugins/gitea-release
diff --git a/build-pandoc.sh b/build-pandoc.sh
index cb39be0..6bcc0e5 100755
--- a/build-pandoc.sh
+++ b/build-pandoc.sh
@@ -1,12 +1,12 @@
-#!/bin/bash
+#!/bin/sh
 
 # enter the current directory
 cd "$(dirname $0)"
 export PANDOC_DIR=pandoc/cl
 
-files=(
+export files="
   src/parcours.md
-)
+"
 
 if [ -z $1 ]; then
   export target=pdf