diff --git a/Dockerfile b/Dockerfile
index b605e5a..280b5c4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,11 +2,13 @@ FROM quay.io/np__/haskell
 
 MAINTAINER Nicolas Pouillard [https://nicolaspouillard.fr]
 
-ADD https://github.com/np/cmdcheck/raw/master/cmdcheck /usr/bin/cmdcheck
 RUN cabal update && cabal install haskoin base16-bytestring scientific binary RFC1751 aeson
 
 ADD   . /hx
 WORKDIR /hx
 RUN     cabal install
-#RUN     chmod +x /usr/bin/cmdcheck && /usr/bin/cmdcheck tests/*.t
+ADD     https://github.com/np/cmdcheck/raw/master/cmdcheck /hx/cmdcheck
+RUN     chmod +x /hx/cmdcheck && \
+        PATH=/hx/dist/build/hx:$PATH \
+          /usr/bin/cmdcheck tests/*.t
 #RUN apt-get update && apt-get install ${OPTS_APT} lib-ghc...