diff --git a/core/src/main/java/lucee/runtime/tag/Throw.java b/core/src/main/java/lucee/runtime/tag/Throw.java
index b57dc06ab8..545e179d59 100755
--- a/core/src/main/java/lucee/runtime/tag/Throw.java
+++ b/core/src/main/java/lucee/runtime/tag/Throw.java
@@ -59,6 +59,7 @@ public final class Throw extends TagImpl {
 	private String errorcode = "";
 
 	private Object object;
+	private PageException cause;
 
 	private int level = 1;
 
@@ -72,6 +73,7 @@ public void release() {
 		errorcode = "";
 		object = null;
 		level = 1;
+		cause = null;
 	}
 
 	/**
@@ -118,6 +120,14 @@ public void setMessage(String message) {
 		this.message = message;
 	}
 
+	public void setCause(Object cause) throws PageException {
+		if (cause == null) return;
+		if (cause instanceof ThreadDeath) throw new ApplicationException("cannot set this kind [" + cause.getClass().getName() + "] of exception as caused by");
+		this.cause = toPageException(cause, null);
+		if (this.cause == null) throw new ApplicationException("cannot cast this type [" + cause.getClass().getName() + "] to an exception");
+
+	}
+
 	/**
 	 * set the value errorcode A custom error code that you supply.
 	 * 
@@ -201,7 +211,9 @@ public int doStartTag() throws PageException {
 		_doStartTag(message);
 		_doStartTag(object);
 
-		throw new CustomTypeException("", detail, errorcode, type, extendedinfo, level);
+		CustomTypeException exception = new CustomTypeException("", detail, errorcode, type, extendedinfo, level);
+		if (cause != null) exception.initCause(cause);
+		throw exception;
 	}
 
 	private void _doStartTag(Object obj) throws PageException {
@@ -210,6 +222,7 @@ private void _doStartTag(Object obj) throws PageException {
 			if (pe != null) throw pe;
 
 			CustomTypeException exception = new CustomTypeException(Caster.toString(obj), detail, errorcode, type, extendedinfo, level);
+			if (cause != null) exception.initCause(cause);
 			throw exception;
 		}
 	}
diff --git a/core/src/main/java/resource/tld/core-base.tld b/core/src/main/java/resource/tld/core-base.tld
index 8655de8903..0ed373cf95 100755
--- a/core/src/main/java/resource/tld/core-base.tld
+++ b/core/src/main/java/resource/tld/core-base.tld
@@ -8021,6 +8021,13 @@ If you terminate a thread, the thread scope includes an ERROR metadata structure
 			<rtexprvalue>true</rtexprvalue>
 			<description>a native java exception Object, if this attribute is defined all other will be ignored</description>
 		</attribute>
+		<attribute>
+			<type>any</type>
+			<name>cause</name>
+			<required>false</required>
+			<rtexprvalue>true</rtexprvalue>
+			<description>the cause of the exception created with this tag. This can be a cfcatch block or a native java exception.</description>
+		</attribute>
 		<attribute>
 			<type>numeric</type>
 			<name>contextLevel</name>
diff --git a/loader/build.xml b/loader/build.xml
index 3ec568cf73..9d58a84a93 100644
--- a/loader/build.xml
+++ b/loader/build.xml
@@ -2,11 +2,11 @@
 <project default="core" basedir="." name="Lucee" 
   xmlns:resolver="antlib:org.apache.maven.resolver.ant">
 
-  <property name="version" value="6.0.0.533-SNAPSHOT"/>
+  <property name="version" value="6.0.0.534-SNAPSHOT"/>
 
   <taskdef uri="antlib:org.apache.maven.resolver.ant" resource="org/apache/maven/resolver/ant/antlib.xml">
     <classpath>
-      <fileset dir="../ant/lib" includes="maven-resolver-ant-tasks-*.jar"/>
+       <fileset dir="../ant/lib" includes="maven-resolver-ant-tasks-*.jar"/>
     </classpath>
   </taskdef>
 
diff --git a/loader/pom.xml b/loader/pom.xml
index 5235dc3635..96e216467d 100644
--- a/loader/pom.xml
+++ b/loader/pom.xml
@@ -3,7 +3,7 @@
 
   <groupId>org.lucee</groupId>
   <artifactId>lucee</artifactId>
-  <version>6.0.0.533-SNAPSHOT</version>
+  <version>6.0.0.534-SNAPSHOT</version>
   <packaging>jar</packaging>
 
   <name>Lucee Loader Build</name>