diff --git a/paper-api/src/org/bukkit/event/EventException.java b/paper-api/src/org/bukkit/event/EventException.java
index 25134cbc5f..2abd7d9403 100644
--- a/paper-api/src/org/bukkit/event/EventException.java
+++ b/paper-api/src/org/bukkit/event/EventException.java
@@ -1,7 +1,8 @@
 package org.bukkit.event;
 
 public class EventException extends Exception {
-    private final Throwable cause;
+	private static final long serialVersionUID = 3532808232324183999L;
+	private final Throwable cause;
 
     /**
      * Constructs a new EventException based on the given Exception
diff --git a/paper-api/src/org/bukkit/plugin/InvalidDescriptionException.java b/paper-api/src/org/bukkit/plugin/InvalidDescriptionException.java
index 2d586a14fa..e6f038927e 100644
--- a/paper-api/src/org/bukkit/plugin/InvalidDescriptionException.java
+++ b/paper-api/src/org/bukkit/plugin/InvalidDescriptionException.java
@@ -5,7 +5,8 @@ package org.bukkit.plugin;
  * Thrown when attempting to load an invalid PluginDescriptionFile
  */
 public class InvalidDescriptionException extends Exception {
-    private final Throwable cause;
+	private static final long serialVersionUID = 5721389122281775894L;
+	private final Throwable cause;
 
     /**
      * Constructs a new InvalidDescriptionException based on the given Exception
diff --git a/paper-api/src/org/bukkit/plugin/InvalidPluginException.java b/paper-api/src/org/bukkit/plugin/InvalidPluginException.java
index 9ab904c153..4155723abe 100644
--- a/paper-api/src/org/bukkit/plugin/InvalidPluginException.java
+++ b/paper-api/src/org/bukkit/plugin/InvalidPluginException.java
@@ -5,7 +5,8 @@ package org.bukkit.plugin;
  * Thrown when attempting to load an invalid Plugin file
  */
 public class InvalidPluginException extends Exception {
-    private final Throwable cause;
+	private static final long serialVersionUID = -8242141640709409542L;
+	private final Throwable cause;
 
     /**
      * Constructs a new InvalidPluginException based on the given Exception