diff --git a/src/main/java/com/hbm/tileentity/machine/oil/TileEntityOilDrillBase.java b/src/main/java/com/hbm/tileentity/machine/oil/TileEntityOilDrillBase.java
index 307c87f9e..7ac708861 100644
--- a/src/main/java/com/hbm/tileentity/machine/oil/TileEntityOilDrillBase.java
+++ b/src/main/java/com/hbm/tileentity/machine/oil/TileEntityOilDrillBase.java
@@ -199,7 +199,7 @@ public abstract class TileEntityOilDrillBase extends TileEntityMachineBase imple
 	
 	public int getDelayEff() {
 		int delay = getDelay();
-		return Math.max((delay - (delay / 4 * this.speedLevel) + (delay / 10 * this.energyLevel) / this.overLevel), 1);
+		return Math.max((delay - (delay / 4 * this.speedLevel) + (delay / 10 * this.energyLevel)) / this.overLevel, 1);
 	}
 	
 	public abstract int getPowerReq();