diff --git a/app/src/main/java/lightcontainer/protocol/rules/writer/RetrieveFileRule.java b/app/src/main/java/lightcontainer/protocol/rules/writer/RetrieveFileRule.java
index b64d1bb..951f92d 100644
--- a/app/src/main/java/lightcontainer/protocol/rules/writer/RetrieveFileRule.java
+++ b/app/src/main/java/lightcontainer/protocol/rules/writer/RetrieveFileRule.java
@@ -2,10 +2,12 @@ package lightcontainer.protocol.rules.writer;
 
 import lightcontainer.protocol.ProtocolWriter;
 
+import static lightcontainer.protocol.StandardizedDefinitions.FFE_RETRIEVE_FILE;
+
 public class RetrieveFileRule extends ProtocolWriter {
     // Constants
     //"^RETRIEVEFILE ([A-Za-z0-9]{50,200})\r\n$"
-    private static final String PATTERN = "^RETRIEVEFILE ([A-Za-z0-9]{50,200})\r\n$";
+    private static final String PATTERN = FFE_RETRIEVE_FILE;
     public static final String NAME = "RETRIEVEFILE";
 
     // Constructor