diff --git a/Dockerfile.build b/Dockerfile.build
index f0a0fec51e14cf02972222e174395c6bf9fcde3a..aec055358c1fef74d0378ff1f772d8696caaeba0 100644
--- a/Dockerfile.build
+++ b/Dockerfile.build
@@ -2,7 +2,7 @@ FROM clangml-transforms
 RUN git pull
 RUN cd /home/opam/memcad && git pull
 RUN cd /home/opam/clangml-transforms && git pull
-RUN . /home/opam/.profile && cd clangml-transforms && \
+RUN . /home/opam/.profile && cd /home/opam/clangml-transforms && \
     dune build clangml-transforms.opam
 RUN opam update && opam upgrade && opam install clangml-transforms
 RUN cd /home/opam/memcad && git pull