diff --git a/common/src/main/java/muramasa/gregtech/cover/redstone/CoverNeedsMaintenance.java b/common/src/main/java/muramasa/gregtech/cover/redstone/CoverNeedsMaintenance.java
index 00d355cfb..f5823c905 100644
--- a/common/src/main/java/muramasa/gregtech/cover/redstone/CoverNeedsMaintenance.java
+++ b/common/src/main/java/muramasa/gregtech/cover/redstone/CoverNeedsMaintenance.java
@@ -44,7 +44,7 @@ public void onUpdate() {
                         long scale = rotor.getMaxDamage() / 15L;
                         long damage = rotor.getMaxDamage() - rotor.getDamageValue();
                         if (scale > 0){
-                            setOutputRedstone(mode.inverted ? (int) (15L - damage / scale) : (int) (damage / scale));
+                            setOutputRedstone(mode.inverted ? (int) (damage / scale) : (int) (15L - damage / scale));
                         } else {
                             setOutputRedstone(mode.inverted ? 15 : 0);
                         }