diff --git a/.github/workflows/build_all.yml b/.github/workflows/build_all.yml
index d8b76a26c1..6007294ee0 100644
--- a/.github/workflows/build_all.yml
+++ b/.github/workflows/build_all.yml
@@ -242,4 +242,10 @@ jobs:
         asset_name: OrcaSlicer-Linux-flatpak_nightly_${{ matrix.variant.arch }}.flatpak
         asset_content_type: application/octet-stream
         max_releases: 1 # optional, if there are more releases than this matching the asset_name, the oldest ones are going to be deleted
+    - name: Fix ownership of root-owned files on self-hosted runners
+      if: ${{ always() && vars.SELF_HOSTED }}
+      run: |
+        runner_uid=$(stat -c '%u' .)
+        chown -R "$runner_uid:$runner_uid" .flatpak-builder
+      shell: bash