diff --git a/Dockerfile b/Dockerfile
index a66ba9f..cda5c98 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,10 +15,7 @@ USER 1000:1000
 
 WORKDIR /data
 COPY ["crontab", "/data/"]
-COPY ["main.sh", "/data/"]
-COPY ["Start-DoneTickNotifier.ps1", "/data/"]
-COPY ["Start-DoneTickConsumer.ps1", "/data/"]
+COPY --chmod=755 ["main.sh", "/data/"]
+COPY ["Start-DoneTickNotifier.ps1", "Start-DoneTickConsumer.ps1", "/data/"]
 
-RUN chmod +x /data/main.sh
-
-ENTRYPOINT ["main.sh"]
+ENTRYPOINT ["/data/main.sh"]