diff --git a/docker/Dockerfile.amd64 b/docker/Dockerfile.amd64
index 6905d58..054fd6f 100644
--- a/docker/Dockerfile.amd64
+++ b/docker/Dockerfile.amd64
@@ -7,7 +7,7 @@ LABEL build_version="Version:- ${VERSION} Build-date:- ${BUILD_DATE}"
 LABEL maintainer="Ivan Schaller"
 
 # manga-dlp version
-ARG MDLP_VERSION=2.0.8
+ENV MDLP_VERSION=2.0.8
 
 # install packages
 RUN \
diff --git a/docker/Dockerfile.arm64 b/docker/Dockerfile.arm64
index 6905d58..054fd6f 100644
--- a/docker/Dockerfile.arm64
+++ b/docker/Dockerfile.arm64
@@ -7,7 +7,7 @@ LABEL build_version="Version:- ${VERSION} Build-date:- ${BUILD_DATE}"
 LABEL maintainer="Ivan Schaller"
 
 # manga-dlp version
-ARG MDLP_VERSION=2.0.8
+ENV MDLP_VERSION=2.0.8
 
 # install packages
 RUN \
diff --git a/docker/rootfs/etc/cont-init.d/20-setenv b/docker/rootfs/etc/cont-init.d/20-setenv
index 3526d56..0062f63 100644
--- a/docker/rootfs/etc/cont-init.d/20-setenv
+++ b/docker/rootfs/etc/cont-init.d/20-setenv
@@ -3,7 +3,9 @@
 
 # set all env variables for further use. If variable is unset, it will have the defaults on the right side after ":="
 
-
 # custom env vars
-#: "${var1:=/path1}"
-
+: "${MDLP_LANGUAGE:=en}"
+: "${MDLP_FORCEVOL:=false}"
+: "${MDLP_FILE_FORMAT:=cbz}"
+: "${MDLP_DOWNLOAD_WAIT:=2}"
+: "${MDLP_VERBOSE:=false}"
diff --git a/docker/rootfs/etc/cont-init.d/80-fix-perms b/docker/rootfs/etc/cont-init.d/80-fix-perms
index d5e72a5..1ec425d 100644
--- a/docker/rootfs/etc/cont-init.d/80-fix-perms
+++ b/docker/rootfs/etc/cont-init.d/80-fix-perms
@@ -10,4 +10,3 @@ find '/app' -type 'f' \( -not -perm 664 -and -not -path '/app/downloads*' \) -ex
 
 find '/app' \( -not -user abc -and -not -path '/app/downloads*' \) -exec chown abc '{}' \+
 find '/app' \( -not -group abc -and -not -path '/app/downloads*' \) -exec chown :abc '{}' \+
-
diff --git a/docker/rootfs/etc/cron.d/01-manga-dlp b/docker/rootfs/etc/cron.d/01-manga-dlp
index 80789cc..3547e86 100644
--- a/docker/rootfs/etc/cron.d/01-manga-dlp
+++ b/docker/rootfs/etc/cron.d/01-manga-dlp
@@ -3,4 +3,3 @@
 # the file mangas.txt
 
 0 3 * * *   abc    python3 /app/manga-dlp.py --read /app/mangas.txt -c all
-