diff --git a/.github/workflows/build-spec.yml b/.github/workflows/build-spec.yml
index 034e148..5c0f673 100644
--- a/.github/workflows/build-spec.yml
+++ b/.github/workflows/build-spec.yml
@@ -114,3 +114,15 @@ jobs:
         user-email: ci@ssp-standard.org
         target-branch: main
         target-directory: static/docs/main
+
+  check-trailing-spaces:
+    runs-on: ubuntu-latest
+    steps:
+
+    - uses: actions/checkout@v4
+
+    - name: Check for trailing spaces
+      run: |
+        ! grep -rIn ' $' --include="*.adoc" \
+          --include="*.xsd" --include="*.yml" \
+          --include="*.txt" .