diff --git a/docker/centos7-build b/docker/centos7-build
index 705a68caf..6d5c89865 100644
--- a/docker/centos7-build
+++ b/docker/centos7-build
@@ -17,6 +17,7 @@ COPY $VCPKG_CACHE_DIR /workspace/
 
 ARG BRANCH=develop
 RUN cd /workspace && \
+    source /opt/rh/rh-git227/enable && \
     git clone https://github.com/AntaresSimulatorTeam/antares-xpansion.git --branch $BRANCH && \
     cd antares-xpansion && \
     git submodule update --init vcpkg && ./vcpkg/bootstrap-vcpkg.sh -disableMetrics && \