diff --git a/src/main/java/de/ph87/tools/common/uuid/AbstractUuid.java b/src/main/java/de/ph87/tools/common/uuid/AbstractUuid.java
index 6e1c7f1..e42fbe4 100644
--- a/src/main/java/de/ph87/tools/common/uuid/AbstractUuid.java
+++ b/src/main/java/de/ph87/tools/common/uuid/AbstractUuid.java
@@ -27,17 +27,17 @@ public abstract class AbstractUuid {
     return uuid;
   }
 
+  @Override
+  public boolean equals(final Object obj) {
+    if (!this.getClass().equals(obj.getClass())) {
+      return false;
+    }
+    return uuid.equals(this.getClass().cast(obj).uuid);
+  }
+
   @Override
   public int hashCode() {
     return uuid.hashCode();
   }
 
-  @Override
-  public boolean equals(final Object obj) {
-    if (obj instanceof final AbstractUuid casted) {
-      return uuid.equals(casted.uuid);
-    }
-    return false;
-  }
-
 }