diff --git a/Dockerfile b/Dockerfile
index 29d1212..8557604 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,10 @@ LABEL AlternativeImageName="wollud1969/docker-bash"
 
 RUN \
   apk add --no-cache bash curl git python3 && \
-  pushd /usr/bin && ln -s python3 python && popd
+  P=`pwd` && \
+  cd /usr/bin && \
+  ln -s python3 python && \
+  cd $P
 
 CMD [ "bash" ]