diff --git a/API/pom.xml b/API/pom.xml
index 9cff47c..9a8de01 100644
--- a/API/pom.xml
+++ b/API/pom.xml
@@ -19,7 +19,7 @@
 
     <groupId>asys</groupId>
     <artifactId>api</artifactId>
-    <version>0.9</version>
+    <version>0.9.1</version>
     <packaging>bundle</packaging>
 
     <dependencies>
diff --git a/API/src/main/java/asys/api/ASysUtils.java b/API/src/main/java/asys/api/ASysUtils.java
index 3e837c0..f65b92e 100644
--- a/API/src/main/java/asys/api/ASysUtils.java
+++ b/API/src/main/java/asys/api/ASysUtils.java
@@ -14,8 +14,8 @@ import java.io.InputStream;
 import java.lang.reflect.Method;
 import java.util.Dictionary;
 import java.util.Hashtable;
-import java.util.List;
-import java.util.Vector;
+import java.util.Set;
+import java.util.TreeSet;
 
 public class ASysUtils {
     public static ServiceRegistration<?> RegisterCommands(BundleContext bundleContext, Object commnadsObject, String scope) {
@@ -59,7 +59,7 @@ public class ASysUtils {
     }
 
     private static Dictionary<String, Object> getCommandListByAnnotationMethods(String scope, Class<?> clazz) {
-        List<String> listCommand = new Vector<>();
+        Set<String> listCommand = new TreeSet<>();
 
         Method[] methods = clazz.getMethods();
         for(Method method : methods) {