diff --git a/src/main/java/de/ellpeck/actuallyadditions/mod/items/ItemDrill.java b/src/main/java/de/ellpeck/actuallyadditions/mod/items/ItemDrill.java
index 9338bf763..b417aa025 100644
--- a/src/main/java/de/ellpeck/actuallyadditions/mod/items/ItemDrill.java
+++ b/src/main/java/de/ellpeck/actuallyadditions/mod/items/ItemDrill.java
@@ -382,6 +382,12 @@ public class ItemDrill extends ItemEnergy{
                 efficiency += 8.0F;
             }
         }
+        if(this.getHasUpgrade(stack, ItemDrillUpgrade.UpgradeType.THREE_BY_THREE)){
+            efficiency *= 0.5F;
+            if(this.getHasUpgrade(stack, ItemDrillUpgrade.UpgradeType.FIVE_BY_FIVE)){
+                efficiency *= 0.35F;
+            }
+        }
         return efficiency;
     }
 
diff --git a/update/changelog.md b/update/changelog.md
index a81c2967b..d88768380 100644
--- a/update/changelog.md
+++ b/update/changelog.md
@@ -11,7 +11,6 @@
 * Made damage source from Reconstructor display properly
 * Added a config option to only display the laser relay particles when holding a laser wrench
 * Fixed miner sometimes crashing when placed next to certain blocks
-*
 
 # 1.9.4-r40
 * Fixed a bug with Laser Relays sometimes randomly disconnecting on chunk load