diff --git a/OpenRA.Mods.RA/BelowUnits.cs b/OpenRA.Mods.RA/BelowUnits.cs
index 9de8e5b48d..5605d09876 100644
--- a/OpenRA.Mods.RA/BelowUnits.cs
+++ b/OpenRA.Mods.RA/BelowUnits.cs
@@ -34,7 +34,7 @@ namespace OpenRA.Mods.RA
 
 		public IEnumerable<IRenderable> ModifyRender(Actor self, WorldRenderer wr, IEnumerable<IRenderable> r)
 		{
-			return r.Select(a => a.WithZOffset(offset));
+			return r.Select(a => a.WithZOffset(a.ZOffset + offset));
 		}
 	}
 }