diff --git a/Dockerfile.test b/Dockerfile.test
index 2a23a01..3b21687 100644
--- a/Dockerfile.test
+++ b/Dockerfile.test
@@ -18,6 +18,7 @@ RUN apt-get update && apt-get install -y \
     libmbedtls-dev
 COPY --from=build /usr/local /usr/local-other/
 ENV PATH=${PATH}:/usr/local-other/bin
+ENV LD_LIBRAR_PATH=/usr/local-other/lib
 RUN git clone https://github.com/Retropikzel/compile-r7rs.git --depth=1
 RUN cd compile-r7rs && make && make install