diff --git a/pom.xml b/pom.xml
index c720dc4..4a42f92 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.lucee</groupId>
     <artifactId>kinesis-extension</artifactId>
-    <version>1.0.1.1-SNAPSHOT</version>
+    <version>1.0.1.2-SNAPSHOT</version>
     <packaging>pom</packaging>
     <name>Kinesis Extension</name>
 
diff --git a/source/java/src/org/lucee/extension/aws/kinesis/function/KinesisGet.java b/source/java/src/org/lucee/extension/aws/kinesis/function/KinesisGet.java
index e2f4593..5780fa2 100644
--- a/source/java/src/org/lucee/extension/aws/kinesis/function/KinesisGet.java
+++ b/source/java/src/org/lucee/extension/aws/kinesis/function/KinesisGet.java
@@ -32,6 +32,7 @@
 import software.amazon.awssdk.services.kinesis.model.GetShardIteratorResponse;
 import software.amazon.awssdk.services.kinesis.model.Record;
 import software.amazon.awssdk.services.kinesis.model.Shard;
+import software.amazon.awssdk.services.kinesis.model.ShardIteratorType;
 
 public class KinesisGet extends KinesisFunction {
 
@@ -58,8 +59,8 @@ public class KinesisGet extends KinesisFunction {
 		_iteration = creator.createKey("iteration");
 	}
 
-	public static Query call(PageContext pc, String streamName, String shardId, String sequenceNumber, DateTime timestamp, String iteratorType, double maxrows, String accessKeyId,
-			String secretAccessKey, String host, String location, double timeout) throws PageException {
+	public static Query call(PageContext pc, String streamName, String shardId, String sequenceNumber, DateTime timestamp, String strIteratorType, double maxrows,
+			String accessKeyId, String secretAccessKey, String host, String location, double timeout) throws PageException {
 
 		CFMLEngine eng = CFMLEngineFactory.getInstance();
 		Cast caster = eng.getCastUtil();
@@ -79,46 +80,61 @@ public static Query call(PageContext pc, String streamName, String shardId, Stri
 			boolean sequenceNumberRequired = false;
 			boolean timestampRequired = false;
 
-			if (!Util.isEmpty(iteratorType, true)) {
-				iteratorType = iteratorType.trim().toUpperCase();
-				if ("TRIM_HORIZON".equalsIgnoreCase(iteratorType)) iteratorType = "TRIM_HORIZON";
-				else if ("LATEST".equalsIgnoreCase(iteratorType)) iteratorType = "LATEST";
-				else if ("AT_SEQUENCE_NUMBER".equalsIgnoreCase(iteratorType) || "AFTER_SEQUENCE_NUMBER".equalsIgnoreCase(iteratorType)) {
+			ShardIteratorType iteratorType = null;
+			if (!Util.isEmpty(strIteratorType, true)) {
+				strIteratorType = strIteratorType.trim().toUpperCase();
+				if ("TRIM_HORIZON".equalsIgnoreCase(strIteratorType)) {
+					iteratorType = ShardIteratorType.TRIM_HORIZON;
+				}
+				else if ("LATEST".equalsIgnoreCase(strIteratorType)) {
+					iteratorType = ShardIteratorType.LATEST;
+				}
+				else if ("AT_SEQUENCE_NUMBER".equalsIgnoreCase(strIteratorType)) {
+					iteratorType = ShardIteratorType.AT_SEQUENCE_NUMBER;
+					sequenceNumberRequired = true;
+				}
+				else if ("AFTER_SEQUENCE_NUMBER".equalsIgnoreCase(strIteratorType)) {
+					iteratorType = ShardIteratorType.AFTER_SEQUENCE_NUMBER;
 					sequenceNumberRequired = true;
 				}
-				else if ("AT_TIMESTAMP".equalsIgnoreCase(iteratorType)) {
+				else if ("AT_TIMESTAMP".equalsIgnoreCase(strIteratorType)) {
+					iteratorType = ShardIteratorType.AT_TIMESTAMP;
 					timestampRequired = true;
 				}
-				else throw eng.getExceptionUtil().createFunctionException(pc, "KinesisGet", 3, "iteratorType",
-						"invalid iteratorType [" + iteratorType + "], valid types are [TRIM_HORIZON,LATEST,AT_SEQUENCE_NUMBER,AFTER_SEQUENCE_NUMBER,AT_TIMESTAMP]", null);
+				else {
+					throw eng.getExceptionUtil().createFunctionException(pc, "KinesisGet", 3, "iteratorType",
+							"invalid iteratorType [" + strIteratorType + "], valid types are [TRIM_HORIZON,LATEST,AT_SEQUENCE_NUMBER,AFTER_SEQUENCE_NUMBER,AT_TIMESTAMP]", null);
+				}
 			}
 			else {
-				iteratorType = "TRIM_HORIZON";
+				iteratorType = ShardIteratorType.AT_TIMESTAMP;
 			}
 
 			// validate sequenceNumber
 			if (eng.getStringUtil().isEmpty(sequenceNumber, true)) {
 				sequenceNumber = null;
 				if (sequenceNumberRequired) throw eng.getExceptionUtil().createFunctionException(pc, "KinesisGet", 4, "sequenceNumber",
-						"when iteratorType is to [" + iteratorType + "], then the [sequenceNumber] is required", null);
+						"when iteratorType is to [" + strIteratorType + "], then the [sequenceNumber] is required", null);
 			}
 			else {
 				sequenceNumber = sequenceNumber.trim();
 				if (!sequenceNumberRequired) throw eng.getExceptionUtil().createFunctionException(pc, "KinesisGet", 4, "sequenceNumber",
-						"when iteratorType is [" + iteratorType + "], then the [sequenceNumber] cannot be set", null);
+						"when iteratorType is [" + strIteratorType + "], then the [sequenceNumber] cannot be set", null);
 			}
 
 			// validate timestamp
 			if (timestamp == null) {
 				if (timestampRequired) throw eng.getExceptionUtil().createFunctionException(pc, "KinesisGet", 5, "timestamp",
-						"when iteratorType is to [" + iteratorType + "], then the [timestamp] is required", null);
+						"when iteratorType is to [" + strIteratorType + "], then the [timestamp] is required", null);
 			}
 			else {
 				if (!timestampRequired) throw eng.getExceptionUtil().createFunctionException(pc, "KinesisGet", 5, "timestamp",
-						"when iteratorType is [" + iteratorType + "], then the [timestamp] cannot be set", null);
+						"when iteratorType is [" + strIteratorType + "], then the [timestamp] cannot be set", null);
 			}
 
-			if (sequenceNumber != null) iteratorType = "AT_SEQUENCE_NUMBER";
+			if (sequenceNumber != null && iteratorType == null) {
+				iteratorType = ShardIteratorType.AT_SEQUENCE_NUMBER;
+			}
 
 			// validate shardId
 			String shardIterator;