diff --git a/plugins/zorweth-paper/src/main/java/net/civmc/zorweth/oxygen/OxygenManager.java b/plugins/zorweth-paper/src/main/java/net/civmc/zorweth/oxygen/OxygenManager.java
index 3769819fc..ff4cafddd 100644
--- a/plugins/zorweth-paper/src/main/java/net/civmc/zorweth/oxygen/OxygenManager.java
+++ b/plugins/zorweth-paper/src/main/java/net/civmc/zorweth/oxygen/OxygenManager.java
@@ -128,7 +128,7 @@ public class OxygenManager implements Listener {
                 }
 
                 double amount = loss * baseOxygenConsumptionPerSecond;
-                double change = this.oxygenBladderMechanics.getOxygenDrain(player, amount, activity);
+                double change = -this.oxygenBladderMechanics.getOxygenDrain(player, amount, activity);
                 drainOxygen(player, amount, activity);
                 this.lastOxygenTickChange.put(player, change);
                 applyOxygenEffects(player, getOxygen(player));