diff --git a/server/src/main/java/com/ftprx/server/command/SimpleCommand.java b/server/src/main/java/com/ftprx/server/command/SimpleCommand.java
index ee40a12..46bb526 100644
--- a/server/src/main/java/com/ftprx/server/command/SimpleCommand.java
+++ b/server/src/main/java/com/ftprx/server/command/SimpleCommand.java
@@ -21,7 +21,7 @@
 import com.ftprx.server.channel.Command;
 
 /**
- * The interface definition for a FTP Command.
+ * The interface definition for an FTP Command.
  * Your subclass should implement the <code>execute</code> method.
  */
 public abstract class SimpleCommand {