diff --git a/Dockerfile-focal b/Dockerfile-focal
index 729ae257..cbaddf0e 100644
--- a/Dockerfile-focal
+++ b/Dockerfile-focal
@@ -3,7 +3,7 @@ LABEL org.opencontainers.image.authors="nicolasbock@gmail.com"
 
 RUN apt-get update
 RUN DEBIAN_FRONTEND=noninteractive apt-get install --yes sudo
-RUN useradd --create-home --user-group --groups sudo ubuntu
+RUN useradd --create-home --shell /bin/bash --user-group --groups sudo ubuntu
 RUN sed --in-place --expression '/^%sudo/ s/ALL$/NOPASSWD: ALL/' /etc/sudoers
 
 COPY scripts/prepare-container-focal.sh /usr/sbin