diff --git a/Dockerfile b/Dockerfile
index ba789fb..7661085 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,8 @@ RUN apt install -y g++-mingw-w64-x86-64 \
 	g++-aarch64-linux-gnu libc6-dev-arm64-cross
 
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
-RUN . "$HOME/.cargo/env"
+
+ENV PATH="$HOME/.cargo/bin:$PATH"
 
 ENV CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_LINKER=arm-linux-gnueabihf-gcc \
 	CC_armv7_unknown_Linux_gnueabihf=arm-linux-gnueabihf-gcc \