diff --git a/src/gpu/GridGenerator/grid/GridBuilder/MultipleGridBuilder.h b/src/gpu/GridGenerator/grid/GridBuilder/MultipleGridBuilder.h
index 2192bef8a3a3227d3eae39eb756be96a44d1e591..839e0036bbc6b0f5d28bec5da3a0abe637b7adca 100644
--- a/src/gpu/GridGenerator/grid/GridBuilder/MultipleGridBuilder.h
+++ b/src/gpu/GridGenerator/grid/GridBuilder/MultipleGridBuilder.h
@@ -103,7 +103,7 @@ private:
     static void emitNoCoarseGridExistsWarning();
     static void emitGridIsNotInCoarseGridWarning();
 
-    Object *solidObject;// = nullptr;
+    Object *solidObject = nullptr;
 
     uint numberOfLayersFine;
     uint numberOfLayersBetweenLevels;