--- a/.docker/Dockerfile-chain-dev
+++ b/.docker/Dockerfile-chain-dev
@@ -13,6 +13,8 @@
 ARG RUST_TOOLCHAIN=
 ARG FEATURE=
 
+ENV FEATURE $FEATURE
+
 RUN rustup toolchain uninstall $(rustup toolchain list) && \
     rustup toolchain install $RUST_TOOLCHAIN && \
     rustup default $RUST_TOOLCHAIN && \