diff --git a/Dockerfile b/Dockerfile
index d516418c..c00dfd8e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,6 +13,6 @@ RUN chown build .
 USER build
 ARG BUILD_ID
 ARG CMAKE_ARGS
-RUN cmake $SRC/$APPNAME -DTRIQS_ROOT=${INSTALL} $CMAKE_ARGS && make -j4 || make -j1 VERBOSE=1
+RUN cmake $SRC/$APPNAME -DMeasureG2=ON -DTRIQS_ROOT=${INSTALL} $CMAKE_ARGS && make -j4 || make -j1 VERBOSE=1
 USER root
 RUN make install
diff --git a/test/c++/G2.ref.h5 b/test/c++/G2.ref.h5
index 66750698..c2600907 100644
Binary files a/test/c++/G2.ref.h5 and b/test/c++/G2.ref.h5 differ