diff --git a/Dockerfile b/Dockerfile
index 3ef1e2246ebb2fa0153eb546c990cbf006a3155e..7266b82c4cec8dd52378cc4c28ee176b2b35ebad 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,6 +22,7 @@ RUN apt-get -qq update \
   ninja==1.* \
 
   && git clone -c feature.manyFiles=true https://github.com/spack/spack.git /usr/local/spack \
-  PATH=/usr/local/spack/bin:$PATH
+
+  && PATH=/usr/local/spack/bin:$PATH
 
 CMD [ "/bin/bash" ]