diff --git a/.docker/docker-qgis-build.sh b/.docker/docker-qgis-build.sh
index 331bc57db22..023ac1930fe 100755
--- a/.docker/docker-qgis-build.sh
+++ b/.docker/docker-qgis-build.sh
@@ -85,6 +85,7 @@ cmake \
  -DWITH_STAGED_PLUGINS=ON \
  -DWITH_GRASS7=${WITH_GRASS7} \
  -DWITH_GRASS8=${WITH_GRASS8} \
+ -DWITH_GRASS_PLUGIN=${WITH_QT5} \
  -DSUPPRESS_QT_WARNINGS=ON \
  -DENABLE_TESTS=ON \
  -DENABLE_MODELTEST=${WITH_QT5} \
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index a57282938eb..8b9319a0e4b 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -62,7 +62,7 @@ jobs:
             with-quick: ON
             with-clazy: OFF
             with-grass7: OFF
-            with-grass8: OFF
+            with-grass8: ON
             with-compile-commands: OFF
             LD_PRELOAD: ''
             experimental: false