diff --git a/tests/expected/auto/fnc_zxy_row2_6_57_29.pbf.geojson b/tests/expected/auto/fnc_zxy_row2_6_57_29.pbf.geojson
index 4f08f9086..1d0defe4d 100644
--- a/tests/expected/auto/fnc_zxy_row2_6_57_29.pbf.geojson
+++ b/tests/expected/auto/fnc_zxy_row2_6_57_29.pbf.geojson
@@ -9,6 +9,7 @@
         "type": "Point"
       },
       "properties": {
+        "gid": 1,
         "source_mvt_layer": "MixedCase.function_Mixed_Name"
       },
       "type": "Feature"
@@ -22,6 +23,7 @@
         "type": "Point"
       },
       "properties": {
+        "gid": 2,
         "source_mvt_layer": "MixedCase.function_Mixed_Name"
       },
       "type": "Feature"
@@ -35,6 +37,7 @@
         "type": "Point"
       },
       "properties": {
+        "gid": 3,
         "source_mvt_layer": "MixedCase.function_Mixed_Name"
       },
       "type": "Feature"
diff --git a/tests/fixtures/functions/function_Mixed_Name.sql b/tests/fixtures/functions/function_Mixed_Name.sql
index 8b57925cd..3cea8610c 100644
--- a/tests/fixtures/functions/function_Mixed_Name.sql
+++ b/tests/fixtures/functions/function_Mixed_Name.sql
@@ -5,6 +5,7 @@ RETURNS TABLE("mVt" bytea, key text) AS $$
   SELECT mvt, md5(mvt) as key FROM (
     SELECT ST_AsMVT(tile, 'MixedCase.function_Mixed_Name', 4096, 'geom') as mvt FROM (
       SELECT
+        "Gid" AS gid,
         ST_AsMVTGeom(
             ST_Transform(ST_CurveToLine("Geom"), 3857),
             ST_TileEnvelope("Z", x, y),