diff --git a/images/ddclient/entrypoint.sh b/images/ddclient/entrypoint.sh
index cecb8df7..6b2fea42 100755
--- a/images/ddclient/entrypoint.sh
+++ b/images/ddclient/entrypoint.sh
@@ -18,7 +18,7 @@ ssl=yes
 server=$SERVER, protocol=$SERVICE_TYPE, login=$USER_LOGIN, password=$USER_PASSWORD $HOST
 EOF
 fi
-chown ddclient.ddclient /etc/ddclient/ddclient.conf
+chown ddclient:ddclient /etc/ddclient/ddclient.conf
 chmod 400 /etc/ddclient/ddclient.conf
 mkdir -p /run/ddclient && chown ddclient /run/ddclient
 
diff --git a/images/git-dump/Dockerfile b/images/git-dump/Dockerfile
index 123e1f44..2490d8af 100644
--- a/images/git-dump/Dockerfile
+++ b/images/git-dump/Dockerfile
@@ -9,6 +9,7 @@ LABEL org.opencontainers.image.authors="Rich Braun docker@instantlinux.net" \
     org.label-schema.vcs-url=https://github.com/instantlinux/docker-tools
 ENV API_TOKEN_SECRETNAME= \
     DEST_DIR=/var/backup/git \
+    GROUP=care \
     HOUR=0 MINUTE=45 \
     KEEP_DAYS=31 \
     ORG= \
@@ -21,7 +22,6 @@ ENV API_TOKEN_SECRETNAME= \
     TZ=UTC
 
 ARG GIT_VERSION=2.47.1-r0
-ARG GROUP=care
 ARG GID=505
 ARG UID=212
 
diff --git a/images/git-dump/entrypoint.sh b/images/git-dump/entrypoint.sh
index b2a008e9..2f11c60c 100755
--- a/images/git-dump/entrypoint.sh
+++ b/images/git-dump/entrypoint.sh
@@ -41,7 +41,7 @@ chown -R $USERNAME /home/$USERNAME
 [ -e /var/log/git-dump.log ] || touch /var/log/git-dump.log
 [ -e /var/log/git-dump-status.txt ] || touch /var/log/git-dump-status.txt
 mkdir -p -m 750 $DEST_DIR
-chown $USERNAME.$GROUP $DEST_DIR /var/log/git-dump.log /var/log/git-dump-status.txt
+chown $USERNAME:$GROUP $DEST_DIR /var/log/git-dump.log /var/log/git-dump-status.txt
 
 cat <<EOF >/etc/opt/git-dump
 # Options for /usr/local/bin/git-dump