diff --git a/Dockerfile b/Dockerfile
index 65cb29a4..cabcb996 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -252,7 +252,8 @@ RUN R -e "install.packages(list.dirs('/home/r-library',recursive = FALSE), repos
 ##################
 # Install chktex #
 ##################
-RUN wget --tries=5 http://mirrors.ctan.org/support/chktex.zip -O - -q | unzip -q -\
+RUN wget --tries=5 http://mirrors.ctan.org/support/chktex.zip -O chktex.zip -q \
+    && unzip -q chktex.zip \
     && cd chktex \
     && ./configure && make \
     && mv chktex /usr/bin \