diff --git a/tile/misc/TileVibrationChamber.java b/tile/misc/TileVibrationChamber.java
index 8f811a7da..8a350c7a6 100644
--- a/tile/misc/TileVibrationChamber.java
+++ b/tile/misc/TileVibrationChamber.java
@@ -51,7 +51,7 @@ public class TileVibrationChamber extends AENetworkInvTile implements IGridTicka
 	{
 		boolean wasOn = isOn;
 		isOn = data.readBoolean();
-		return wasOn != isOn; // TESR dosn't need updates!
+		return wasOn != isOn; // TESR doesn't need updates!
 	}
 
 	@TileEvent(TileEventType.NETWORK_WRITE)