diff --git a/tools/build/Docker/Dockerfile.Ubuntu b/tools/build/Docker/Dockerfile.Ubuntu
index 54a8499996..ff4a9e7c6e 100644
--- a/tools/build/Docker/Dockerfile.Ubuntu
+++ b/tools/build/Docker/Dockerfile.Ubuntu
@@ -10,7 +10,7 @@ COPY ubuntu.sh /tmp
 RUN apt-get update && \
     apt-get upgrade --yes && \
     sh /tmp/ubuntu.sh && \
-    mkdir /builds
+    mkdir -p /builds
 
 WORKDIR /builds
 
diff --git a/tools/build/Docker/ubuntu.sh b/tools/build/Docker/ubuntu.sh
index 6d57713e6e..1d2f7ecfce 100644
--- a/tools/build/Docker/ubuntu.sh
+++ b/tools/build/Docker/ubuntu.sh
@@ -13,4 +13,4 @@ apt-get install --no-install-recommends --yes build-essential cmake doxygen git
     libyaml-cpp-dev libzipios++-dev netgen netgen-headers pyside2-tools python3-dev \
     python3-matplotlib python3-pivy python3-ply python3-pyside2.qtsvg \
     python3-pyside2.qtuitools qtchooser qttools5-dev shiboken2 swig \
-    qtwayland5
+    qtwayland5 python3-pyside2.qtnetwork python3-yaml