diff --git a/core/src/main/java/mc/core/EntityLocation.java b/core/src/main/java/mc/core/EntityLocation.java
index 53fadcb..485d067 100644
--- a/core/src/main/java/mc/core/EntityLocation.java
+++ b/core/src/main/java/mc/core/EntityLocation.java
@@ -3,8 +3,10 @@ package mc.core;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import mc.core.world.block.BlockLocation;
 
+@Slf4j
 @NoArgsConstructor
 @AllArgsConstructor
 @Data
@@ -53,7 +55,7 @@ public class EntityLocation implements Cloneable {
         try {
             return (EntityLocation) super.clone();
         } catch (CloneNotSupportedException e) {
-            e.printStackTrace();
+            log.error("", e);
             return ZERO();
         }
     }
diff --git a/core/src/main/java/mc/core/world/block/BlockLocation.java b/core/src/main/java/mc/core/world/block/BlockLocation.java
index ff6fd5f..aa9a038 100644
--- a/core/src/main/java/mc/core/world/block/BlockLocation.java
+++ b/core/src/main/java/mc/core/world/block/BlockLocation.java
@@ -3,7 +3,9 @@ package mc.core.world.block;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 
+@Slf4j
 @NoArgsConstructor
 @AllArgsConstructor
 @Data
@@ -25,7 +27,7 @@ public class BlockLocation implements Cloneable {
         try {
             return (BlockLocation) super.clone();
         } catch (CloneNotSupportedException e) {
-            e.printStackTrace();
+            log.error("", e);
             return ZERO();
         }
     }