diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index c6c4999..92679a2 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -87,7 +87,7 @@ jobs:
       - name: Run the action on guide
         uses: trustedcomputinggroup/markdown@latest
         with:
-          input-md: guide.md
+          input-md: guide.tcg
           output-pdf: guide.pdf
           output-tex: guide.tex
           output-docx: guide.docx
@@ -132,7 +132,7 @@ jobs:
       - name: Render for release
         uses: trustedcomputinggroup/markdown@latest
         with:
-          input-md: guide.md
+          input-md: guide.tcg
           extra-build-options: "--gitstatus --plain_quotes"
           output-pdf: guide.pdf
           output-docx: guide.docx
diff --git a/.github/workflows/render-samples.yml b/.github/workflows/render-samples.yml
index 44de9f7..7268a78 100644
--- a/.github/workflows/render-samples.yml
+++ b/.github/workflows/render-samples.yml
@@ -74,7 +74,7 @@ jobs:
       - name: Run the action on guide
         uses: trustedcomputinggroup/markdown@latest
         with:
-          input-md: guide.md
+          input-md: guide.tcg
           output-pdf: guide.pdf
           output-tex: guide.tex
           output-docx: guide.docx
diff --git a/guide.md b/guide.tcg
similarity index 100%
rename from guide.md
rename to guide.tcg