diff --git a/src/Dockerfile.header b/src/Dockerfile.header
index e8c9dfd..12eaf63 100644
--- a/src/Dockerfile.header
+++ b/src/Dockerfile.header
@@ -3,3 +3,4 @@
 FROM nvidia/cuda:10.1-base-ubuntu18.04
 LABEL maintainer="Christoph Schranz <christoph.schranz@salzburgresearch.at>"
 # This is a concatenated Dockerfile, the maintainers of subsequent sections may vary.
+RUN chmod 1777 /tmp && chmod 1777 /var/tmp