diff --git a/Dockerfile b/Dockerfile
index cb323ea..65f718a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,5 +7,6 @@ FROM certbot/certbot:rolling
 VOLUME /etc/letsencrypt
 COPY --from=builder /home/rust/src/target/x86_64-unknown-linux-musl/release/letsencrypt-inwx /usr/bin/
 COPY etc/* /usr/lib/letsencrypt-inwx/
+RUN chmod +x /usr/lib/letsencrypt-inwx/*
 
-ENTRYPOINT ["/bin/sh", "/usr/lib/letsencrypt-inwx/docker-entrypoint.sh"]
\ No newline at end of file
+ENTRYPOINT ["/usr/lib/letsencrypt-inwx/docker-entrypoint.sh"]
diff --git a/etc/certbot-inwx-auth b/etc/certbot-inwx-auth
index 11e2bc0..cb401dc 100755
--- a/etc/certbot-inwx-auth
+++ b/etc/certbot-inwx-auth
@@ -2,7 +2,7 @@
 
 CONFIG_PATH=/etc/letsencrypt-inwx.json
 
-if [ -f ~/.config/letsencrypt-inwx-cred ]; then
+if [ -f ~/.config/letsencrypt-inwx.json ]; then
 	CONFIG_PATH=~/.config/letsencrypt-inwx.json
 fi
 
diff --git a/etc/certbot-inwx-cleanup b/etc/certbot-inwx-cleanup
index cb4c280..7ef85a3 100755
--- a/etc/certbot-inwx-cleanup
+++ b/etc/certbot-inwx-cleanup
@@ -2,7 +2,7 @@
 
 CONFIG_PATH=/etc/letsencrypt-inwx.json
 
-if [ -f ~/.config/letsencrypt-inwx-cred ]; then
+if [ -f ~/.config/letsencrypt-inwx.json ]; then
 	CONFIG_PATH=~/.config/letsencrypt-inwx.json
 fi
 
diff --git a/etc/docker-entrypoint.sh b/etc/docker-entrypoint.sh
old mode 100644
new mode 100755
index 5865505..2a0aea4
--- a/etc/docker-entrypoint.sh
+++ b/etc/docker-entrypoint.sh
@@ -1,3 +1,5 @@
+#!/bin/sh
+
 CONF_CREATED=false
 
 if [ ! -z "$INWX_USER" -a ! -z "$INWX_PASSWD" ]; then
@@ -7,7 +9,7 @@ if [ ! -z "$INWX_USER" -a ! -z "$INWX_PASSWD" ]; then
 PASSING INWX_USER AND INWX_PASSWD AS ENV VARIABLES IS DEPRECATED AND WILL BE REMOVED IN THE FUTURE!
 You should mount a config file into the container instead. See https://github.com/kegato/letsencrypt-inwx for details.
 "
-	cat << EOF > /etc/letsencrypt-inwx.conf
+	cat << EOF > /etc/letsencrypt-inwx.json
 {
 	"accounts": [{
 		"username": "$INWX_USER",
@@ -15,7 +17,7 @@ You should mount a config file into the container instead. See https://github.co
 	}]
 }
 EOF
-	chmod 600 /etc/letsencrypt-inwx.conf
+	chmod 600 /etc/letsencrypt-inwx.json
 fi
 
 set -x
@@ -23,5 +25,5 @@ certbot -n --agree-tos --server https://acme-v02.api.letsencrypt.org/directory $
 set +x
 
 if [ $CONF_CREATED = true ]; then
-	rm /etc/letsencrypt-inwx.conf
+	rm /etc/letsencrypt-inwx.json
 fi