diff --git a/Dockerfile b/Dockerfile
index 5588a6c..14fc936 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,6 +16,7 @@ RUN ARCH="$(dpkg --print-architecture)" && \
     apt-get install \
     --no-install-recommends \
     make \
+    ninja-build \
     cmake \
     wget \
     ca-certificates \
diff --git a/entrypoint.sh b/entrypoint.sh
index 9d48d31..0c46606 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -2,4 +2,4 @@
 
  . /etc/bashrc
 
-exec $@
+exec bash -c "$@"