diff --git a/cli/src/main/java/org/onosproject/cli/app/AllApplicationNamesCompleter.java b/cli/src/main/java/org/onosproject/cli/app/AllApplicationNamesCompleter.java
index f501fd2..d04e087 100644
--- a/cli/src/main/java/org/onosproject/cli/app/AllApplicationNamesCompleter.java
+++ b/cli/src/main/java/org/onosproject/cli/app/AllApplicationNamesCompleter.java
@@ -21,6 +21,7 @@
 import java.util.Spliterators;
 import java.util.stream.StreamSupport;
 
+import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onosproject.app.ApplicationService;
 import org.onosproject.cli.AbstractChoicesCompleter;
 import org.onosproject.core.Application;
@@ -32,6 +33,7 @@
 /**
  * All installed application name completer.
  */
+@Service
 public class AllApplicationNamesCompleter extends AbstractChoicesCompleter {
     @Override
     public List<String> choices() {
diff --git a/cli/src/main/java/org/onosproject/cli/app/ApplicationCommand.java b/cli/src/main/java/org/onosproject/cli/app/ApplicationCommand.java
index 55e7a93..ff0cbf8 100644
--- a/cli/src/main/java/org/onosproject/cli/app/ApplicationCommand.java
+++ b/cli/src/main/java/org/onosproject/cli/app/ApplicationCommand.java
@@ -18,6 +18,7 @@
 import com.google.common.io.ByteStreams;
 import org.apache.karaf.shell.api.action.Argument;
 import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.Completion;
 import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onosproject.app.ApplicationAdminService;
 import org.onosproject.cli.AbstractShellCommand;
@@ -45,11 +46,13 @@
 
     @Argument(index = 0, name = "command",
             description = "Command name (install|activate|deactivate|uninstall|download)",
-            required = true, multiValued = false)
+            required = true)
+    @Completion(ApplicationCommandCompleter.class)
     String command = null;
 
     @Argument(index = 1, name = "names", description = "Application name(s) or URL(s)",
             required = true, multiValued = true)
+    @Completion(ApplicationNameCompleter.class)
     String[] names = null;
 
     @Override
diff --git a/cli/src/main/java/org/onosproject/cli/app/ApplicationCommandCompleter.java b/cli/src/main/java/org/onosproject/cli/app/ApplicationCommandCompleter.java
index 8164b0e..a6487b3 100644
--- a/cli/src/main/java/org/onosproject/cli/app/ApplicationCommandCompleter.java
+++ b/cli/src/main/java/org/onosproject/cli/app/ApplicationCommandCompleter.java
@@ -16,6 +16,7 @@
 package org.onosproject.cli.app;
 
 import com.google.common.collect.ImmutableList;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onosproject.cli.AbstractChoicesCompleter;
 
 import java.util.List;
@@ -25,6 +26,7 @@
 /**
  * Application command completer.
  */
+@Service
 public class ApplicationCommandCompleter extends AbstractChoicesCompleter {
     @Override
     public List<String> choices() {
diff --git a/cli/src/main/java/org/onosproject/cli/app/ApplicationNameCompleter.java b/cli/src/main/java/org/onosproject/cli/app/ApplicationNameCompleter.java
index badbcd8..2d0a6f7 100644
--- a/cli/src/main/java/org/onosproject/cli/app/ApplicationNameCompleter.java
+++ b/cli/src/main/java/org/onosproject/cli/app/ApplicationNameCompleter.java
@@ -15,6 +15,7 @@
  */
 package org.onosproject.cli.app;
 
+import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.apache.karaf.shell.api.console.CommandLine;
 import org.apache.karaf.shell.api.console.Session;
 import org.apache.karaf.shell.support.completers.StringsCompleter;
@@ -43,6 +44,7 @@
 /**
  * Application name completer.
  */
+@Service
 public class ApplicationNameCompleter extends AbstractCompleter {
     @Override
     public int complete(Session session, CommandLine commandLine, List<String> candidates) {