diff --git a/src/main/kotlin/ru/dbotthepony/kstarbound/world/TileModification.kt b/src/main/kotlin/ru/dbotthepony/kstarbound/world/TileModification.kt
index 08e443e8..bbc0753e 100644
--- a/src/main/kotlin/ru/dbotthepony/kstarbound/world/TileModification.kt
+++ b/src/main/kotlin/ru/dbotthepony/kstarbound/world/TileModification.kt
@@ -122,7 +122,7 @@ sealed class TileModification {
 				world.geometry.y.cell(y - 1) == y ||
 				world.geometry.y.cell(y + 1) == y ||
 				world.anyCellSatisfies(x, y, 1) { tx, ty, tcell ->
-					tx != x && ty != y && (tcell.foreground.material.value.isConnectable || tcell.background.material.value.isConnectable)
+					(tx != x || ty != y) && (tcell.foreground.material.value.isConnectable || tcell.background.material.value.isConnectable)
 				}
 		}