diff --git a/lib/kitchen/driver/docker.rb b/lib/kitchen/driver/docker.rb
index fc5fd859..4e08a7f5 100644
--- a/lib/kitchen/driver/docker.rb
+++ b/lib/kitchen/driver/docker.rb
@@ -274,7 +274,7 @@ def build_dockerfile
         when 'alpine'
           user = <<-eos
             RUN if ! getent passwd #{username}; then \
-                  adduser -g "kitchen user" -h #{homedir} -s /bin/ash #{username} && usermod -p * #{username}; \
+                  adduser -g "kitchen user" -h #{homedir} -s /bin/ash -D #{username} && usermod -p '*' #{username}; \
                 fi
           eos
         else