diff --git a/extra/docker/Dockerfile.WindowsBuild b/extra/docker/Dockerfile.WindowsBuild
index 7be9dce..51c741f 100644
--- a/extra/docker/Dockerfile.WindowsBuild
+++ b/extra/docker/Dockerfile.WindowsBuild
@@ -1,6 +1,6 @@
 FROM sago007/docker_blockattack
 
-RUN apt-get update && apt-get install -y zip gettext mxe-i686-w64-mingw32.static-sdl2-gfx mxe-i686-w64-mingw32.static-libxml2
+RUN apt-get update && apt-get install -y zip gettext mxe-i686-w64-mingw32.static-sdl2-gfx mxe-i686-w64-mingw32.static-libxml2 mxe-i686-w64-mingw32.static-box2d
 
 RUN mkdir -p /staging/saland