diff --git a/cli/src/main/java/org/onosproject/cli/net/RegionAddDevicesCommand.java b/cli/src/main/java/org/onosproject/cli/net/RegionAddDevicesCommand.java
index 2ed04f8..c879598 100644
--- a/cli/src/main/java/org/onosproject/cli/net/RegionAddDevicesCommand.java
+++ b/cli/src/main/java/org/onosproject/cli/net/RegionAddDevicesCommand.java
@@ -17,6 +17,7 @@
 
 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.cli.AbstractShellCommand;
 import org.onosproject.net.DeviceId;
@@ -36,10 +37,12 @@
 
     @Argument(index = 0, name = "id", description = "Region ID",
             required = true, multiValued = false)
+    @Completion(RegionIdCompleter.class)
     String id = null;
 
     @Argument(index = 1, name = "devIds", description = "Device IDs",
             required = true, multiValued = true)
+    @Completion(DeviceIdCompleter.class)
     List<String> devIds = null;
 
     @Override