diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/wands/WandOfBlastWave.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/wands/WandOfBlastWave.java
index b61c4aa6d..6db4bfe73 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/wands/WandOfBlastWave.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/wands/WandOfBlastWave.java
@@ -183,6 +183,8 @@ public class WandOfBlastWave extends DamageWand {
 				if (ch == Dungeon.hero){
 					Dungeon.observe();
 					GameScene.updateFog();
+				} else if (Dungeon.level.heroFOV[initialpos] != Dungeon.level.heroFOV[newPos]){
+					Dungeon.observe();
 				}
 			}
 		}));