diff --git a/Dockerfile b/Dockerfile
index ea1e28f8b..6341f3fc1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -59,6 +59,9 @@ RUN useradd rails --create-home --shell /bin/bash && \
     chown -R rails:rails db log storage tmp
 USER rails:rails
 
+# Entrypoint prepares the database.
+ENTRYPOINT ["/rails/bin/docker-entrypoint"]
+
 # Ruby GC tuning values pulled from Autotuner recommendations
 ENV RUBY_GC_HEAP_0_INIT_SLOTS=692636 \
     RUBY_GC_HEAP_1_INIT_SLOTS=175943 \