diff --git a/app/src/main/java/lightcontainer/protocol/rules/writer/GetFileOkRule.java b/app/src/main/java/lightcontainer/protocol/rules/writer/GetFileOkRule.java
index 48c363f..2f7e66c 100644
--- a/app/src/main/java/lightcontainer/protocol/rules/writer/GetFileOkRule.java
+++ b/app/src/main/java/lightcontainer/protocol/rules/writer/GetFileOkRule.java
@@ -2,6 +2,7 @@ package lightcontainer.protocol.rules.writer;
 
 import lightcontainer.domains.client.Context;
 import lightcontainer.protocol.ProtocolWriter;
+import lightcontainer.protocol.StandardizedDefinitions;
 import lightcontainer.utils.FileSender;
 
 import java.io.IOException;
@@ -9,9 +10,12 @@ import java.io.OutputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 
+import static lightcontainer.protocol.StandardizedDefinitions.FFE_GET_FILE_RESULT_OK;
+
 public class GetFileOkRule extends ProtocolWriter {
     // Constants
-    private static final String PATTERN = "^GETFILE_OK ([^ !]{1,20}) ([0-9]{1,10})\r\n$";
+    //"^GETFILE_OK ([^ !]{1,20}) ([0-9]{1,10})\r\n$"
+    private static final String PATTERN = FFE_GET_FILE_RESULT_OK;
     public static final String NAME = "GETFILE_OK";
     // -- params
     private static final int FILE_NAME = 0;  // Index file name hashed