diff --git a/tools/common/sdist-helper.sh b/tools/common/sdist-helper.sh
new file mode 100755
index 000000000..7b878b79f
--- /dev/null
+++ b/tools/common/sdist-helper.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+set -e -x
+
+dockerhub=janden
+image=finufft-sdist
+
+docker build --file tools/common/docker/Dockerfile-x86_64 \
+             --tag ${dockerhub}/${image} \
+             .
+
+docker run --volume $(pwd)/wheelhouse:/io/wheelhouse \
+           ${dockerhub}/${image} \
+           /io/finufft/tools/finufft/build-sdist.sh
+
+docker run --volume $(pwd)/wheelhouse:/io/wheelhouse \
+           ${dockerhub}/${image} \
+           /io/finufft/tools/cufinufft/build-sdist.sh