diff --git a/ShadowsocksX-NG/PreferencesWindowController.swift b/ShadowsocksX-NG/PreferencesWindowController.swift
index b8deeb2..883af37 100644
--- a/ShadowsocksX-NG/PreferencesWindowController.swift
+++ b/ShadowsocksX-NG/PreferencesWindowController.swift
@@ -168,16 +168,23 @@ class PreferencesWindowController: NSWindowController
     }
     
     @IBAction func duplicate(_ sender: Any) {
-        let profile = profileMgr.profiles[profilesTableView.clickedRow]
-        let duplicateProfile = profile.copy() as! ServerProfile
-        duplicateProfile.uuid = UUID().uuidString
-        profileMgr.profiles.insert(duplicateProfile, at: profilesTableView.clickedRow+1)
-        profilesTableView.beginUpdates()
-        let index = IndexSet(integer: profileMgr.profiles.count-1)
-        profilesTableView.insertRows(at: index, withAnimation: .effectFade)
-        self.profilesTableView.scrollRowToVisible(profilesTableView.clickedRow+1)
-        self.profilesTableView.selectRowIndexes(index, byExtendingSelection: false)
-        profilesTableView.endUpdates()
+        var copyCount = 0
+        for (_, toDuplicateIndex) in profilesTableView.selectedRowIndexes.enumerated() {
+            print(profileMgr.profiles.count)
+            let profile = profileMgr.profiles[toDuplicateIndex + copyCount]
+            let duplicateProfile = profile.copy() as! ServerProfile
+            duplicateProfile.uuid = UUID().uuidString
+            profileMgr.profiles.insert(duplicateProfile, at:toDuplicateIndex + copyCount)
+            
+            profilesTableView.beginUpdates()
+            let index = IndexSet(integer: toDuplicateIndex + copyCount)
+            profilesTableView.insertRows(at: index, withAnimation: .effectFade)
+            self.profilesTableView.scrollRowToVisible(toDuplicateIndex + copyCount)
+            self.profilesTableView.selectRowIndexes(index, byExtendingSelection: false)
+            profilesTableView.endUpdates()
+            
+            copyCount += 1
+        }
         updateProfileBoxVisible()
     }