diff --git a/.github/workflows/build-image.yml b/.github/workflows/build-image.yml
index 6225c746997..982031c9d8d 100644
--- a/.github/workflows/build-image.yml
+++ b/.github/workflows/build-image.yml
@@ -61,7 +61,7 @@ jobs:
         id: version_vars
         if: github.repository == 'mastodon/mastodon' && github.event_name == 'push' && github.ref_name == 'main'
         run: |
-          echo mastodon_version_suffix=\"+edge-$(git rev-parse --short HEAD)\" >> $GITHUB_OUTPUT
+          echo mastodon_version_suffix=+edge-$(git rev-parse --short HEAD) >> $GITHUB_OUTPUT
 
       - uses: docker/build-push-action@v4
         with:
diff --git a/.github/workflows/build-nightly.yml b/.github/workflows/build-nightly.yml
index e765315d05d..f07f7447ca1 100644
--- a/.github/workflows/build-nightly.yml
+++ b/.github/workflows/build-nightly.yml
@@ -44,7 +44,7 @@ jobs:
       - name: Generate version suffix
         id: version_vars
         run: |
-          echo mastodon_version_suffix=\"+nightly-$(date +'%Y%m%d')\" >> $GITHUB_OUTPUT
+          echo mastodon_version_suffix=+nightly-$(date +'%Y%m%d') >> $GITHUB_OUTPUT
 
       - uses: docker/build-push-action@v4
         with: