diff --git a/.github/workflows/linux-32bit-build-and-test.yaml b/.github/workflows/linux-32bit-build-and-test.yaml
index f901a2ad420..ee5466ee985 100644
--- a/.github/workflows/linux-32bit-build-and-test.yaml
+++ b/.github/workflows/linux-32bit-build-and-test.yaml
@@ -63,6 +63,9 @@ jobs:
 
     - name: Build TimescaleDB
       run: |
+        # Make sure that the Git checkout is fully owned by root (the active user). Otherwise
+        # git would complain about 'detected dubious ownership in repository'
+        chown root.root timescaledb -R
         ./bootstrap -DCMAKE_BUILD_TYPE="${{ matrix.build_type }}" -DPG_SOURCE_DIR=~/postgresql -DREQUIRE_ALL_TESTS=ON
         make -C build install
         chown -R postgres:postgres .