diff --git a/Dockerfile b/Dockerfile
index 8075aeee2..ce2e4aec2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -50,7 +50,7 @@ WORKDIR /app/vikunja
 ENTRYPOINT [ "/app/vikunja/vikunja" ]
 EXPOSE 3456
 
-COPY --from=apibuilder --chown=1000:1000 /tmp /tmp
+COPY --from=apibuilder --chown=1000:1000 --chmod=1777 /tmp /tmp
 
 USER 1000