diff --git a/docker/proton.Dockerfile.in b/docker/proton.Dockerfile.in
index b6fbb836..9daee665 100644
--- a/docker/proton.Dockerfile.in
+++ b/docker/proton.Dockerfile.in
@@ -54,6 +54,7 @@ ENV PATH=/usr/lib/ccache:$PATH
 RUN apt-get install -y \
   libxpresent-dev \
   libxpresent-dev:i386 \
+  python3-pefile \
 && rm -rf /opt/usr/share/doc /opt/usr/share/info /opt/usr/share/man \
 && rm -rf /var/lib/apt/lists/*