diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 8f67952..24e64db 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -22,6 +22,7 @@ jobs:
       - run: make lint
       - run: make test
       - run: make dist
+      - run: ./scripts/ci-quality-no-uncommitted-files.sh
 
       - run: gh config set prompt disabled
         env:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6dace2a..fa05c69 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,3 +22,4 @@ jobs:
       - run: make lint
       - run: make test
       - run: make dist
+      - run: ./scripts/ci-quality-no-uncommitted-files.sh
diff --git a/scripts/ci-quality-no-uncommitted-files.sh b/scripts/ci-quality-no-uncommitted-files.sh
new file mode 100755
index 0000000..2862ef0
--- /dev/null
+++ b/scripts/ci-quality-no-uncommitted-files.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+set -o errexit
+set -o nounset
+
+if [ -n "$(git status --porcelain)" ]
+then
+  echo "ERROR: Found uncommitted files in repository:" >&2
+  git status --porcelain >&2
+  exit 1
+fi