diff --git a/core/src/mindustry/world/Build.java b/core/src/mindustry/world/Build.java
index abcccfa3c5..ce352c2694 100644
--- a/core/src/mindustry/world/Build.java
+++ b/core/src/mindustry/world/Build.java
@@ -184,6 +184,7 @@ public class Build{
 
                 if(
                 check == null || //nothing there
+                (type.size == 2 && world.getDarkness(wx, wy) >= 3) ||
                 (state.rules.staticFog && state.rules.fog && !fogControl.isDiscovered(team, wx, wy)) ||
                 (check.floor().isDeep() && !type.floating && !type.requiresWater && !type.placeableLiquid) || //deep water
                 (type == check.block() && check.build != null && rotation == check.build.rotation && type.rotate) || //same block, same rotation