diff --git a/Dockerfile b/Dockerfile
index cd3f707..0f9ff14 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -34,5 +34,5 @@ RUN /usr/local/bin/python3 setup.py install
 
 FROM base
 WORKDIR /root
-CMD ["/usr/local/bin/offlineimap"]
+CMD ["sh", "/app-src/entrypoint.sh"]
 # reads from /root/.offlineimaprc by default - mount this in for running
diff --git a/entrypoint.sh b/entrypoint.sh
new file mode 100644
index 0000000..23fa4ab
--- /dev/null
+++ b/entrypoint.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+while true; do
+        offlineimap
+        sleep 900
+done