diff --git a/spring-integration-file/src/main/java/org/springframework/integration/file/remote/handler/FileTransferringMessageHandler.java b/spring-integration-file/src/main/java/org/springframework/integration/file/remote/handler/FileTransferringMessageHandler.java
index b72f849f7e..ad5fb99c75 100644
--- a/spring-integration-file/src/main/java/org/springframework/integration/file/remote/handler/FileTransferringMessageHandler.java
+++ b/spring-integration-file/src/main/java/org/springframework/integration/file/remote/handler/FileTransferringMessageHandler.java
@@ -66,7 +66,7 @@ public class FileTransferringMessageHandler extends AbstractMessageHandler {
 
 
 	public void setRemoteDirectoryExpression(Expression remoteDirectoryExpression) {
-		this.directoryExpressionProcessor = new ExpressionEvaluatingMessageProcessor<String>(remoteDirectoryExpression);
+		this.directoryExpressionProcessor = new ExpressionEvaluatingMessageProcessor<String>(remoteDirectoryExpression, String.class);
 	}
 
 	public void setTemporaryDirectory(File temporaryDirectory) {