diff --git a/Containerfile b/Containerfile
index 7ce2478..da6460e 100644
--- a/Containerfile
+++ b/Containerfile
@@ -7,10 +7,11 @@ COPY checksums /tmp/checksums
 
 ADD https://desktop.docker.com/linux/main/amd64/160616/docker-desktop-x86_64.rpm /tmp/docker-desktop-x86_64.rpm 
 
-RUN sha256sum -c checksums \
+RUN cd /tmp && sha256sum -c checksums \
     && rpm-ostree ex rebuild \
     && rpm-ostree install --cache-only /tmp/docker-desktop-x86_64.rpm \
-    && rm -f /tmp/docker-desktop-x86_64.rpm
+    && rm -f /tmp/checksums \
+    && rm -f /tmp/docker-desktop-x86_64.rpm \
     && systemctl enable rpm-ostreed-automatic.timer \
     && rpm-ostree cleanup -m \
     && ostree container commit