diff --git a/docker/Dockerfile b/docker/Dockerfile
index 9636f82..d2669cb 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -25,3 +25,8 @@ ENV CC_armv7_unknown_linux_gnueabhihf="arm-linux-gnueabihf-gcc"
 # This is a bug fix for the windows cross compiler for Rust.
 RUN cp /usr/x86_64-w64-mingw32/lib/crt2.o /usr/local/rustup/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-pc-windows-gnu/lib/crt2.o
 
+# For windows cross compilation, use a pre-build binary
+RUN cd /opt && wget https://download.libsodium.org/libsodium/releases/libsodium-1.0.17-mingw.tar.gz && \
+    tar xvf libsodium-1.0.17-mingw.tar.gz 
+    
+ENV SODIUM_LIB_DIR="/opt/libsodium-win64/lib/"
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