diff --git a/Dockerfile b/Dockerfile
index 7618d66..4ffd4eb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ ENV LANG='en_US.UTF-8' \
     PM_UID='1003' \
     PM_GID='1003'
 
-RUN zypper -n in tar wget gzip && \
+RUN zypper -n in tar wget gzip shadow && \
     groupadd -g $PM_GID $PM_GROUP && \
     useradd -u $PM_UID -g $PM_GROUP -M $PM_USER && \
     mkdir /pmmp && \