diff --git a/repo2docker/buildpacks/conda/install-base-env.bash b/repo2docker/buildpacks/conda/install-base-env.bash
index b5b89e76..5365cdbf 100755
--- a/repo2docker/buildpacks/conda/install-base-env.bash
+++ b/repo2docker/buildpacks/conda/install-base-env.bash
@@ -23,7 +23,7 @@ chmod 0755 "$MICROMAMBA_EXE"
 
 # Setting up micromamba in this shell and permanently
 eval "$(${MICROMAMBA_EXE} shell hook --root-prefix ${CONDA_DIR} -s posix)"
-${MICROMAMBA_EXE} shell init -s bash --root-prefix ${CONDA_DIR}
+
 
 micromamba activate
 
@@ -43,6 +43,8 @@ micromamba install \
     -c conda-forge \
     conda=${CONDA_VERSION} mamba=${MAMBA_VERSION} -y
 
+export "export MAMBA_ROOT_PREFIX=${CONDA_DIR}" >> ${CONDA_DIR}/etc/profile.d/mamba.sh
+
 echo "installing notebook env:"
 cat "${NB_ENVIRONMENT_FILE}"