diff --git a/Packages/vChewing_MainAssembly/Sources/MainAssembly/AboutUI/VwrAboutCocoa.swift b/Packages/vChewing_MainAssembly/Sources/MainAssembly/AboutUI/VwrAboutCocoa.swift
index 427fe325..2c68036b 100644
--- a/Packages/vChewing_MainAssembly/Sources/MainAssembly/AboutUI/VwrAboutCocoa.swift
+++ b/Packages/vChewing_MainAssembly/Sources/MainAssembly/AboutUI/VwrAboutCocoa.swift
@@ -87,7 +87,7 @@ public class VwrAboutCocoa: NSViewController {
           )
           NSView()
         }
-        NSStackView.build(.vertical, width: 114) {
+        NSStackView.build(.vertical, spacing: 4, width: 114) {
           addKeyEquivalent(
             NSButton(
               "i18n:aboutWindow.OK_BUTTON",
diff --git a/Packages/vChewing_MainAssembly/Sources/MainAssembly/ClientListMgr/VwrClientListMgr.swift b/Packages/vChewing_MainAssembly/Sources/MainAssembly/ClientListMgr/VwrClientListMgr.swift
index 11bc2375..350e4f57 100644
--- a/Packages/vChewing_MainAssembly/Sources/MainAssembly/ClientListMgr/VwrClientListMgr.swift
+++ b/Packages/vChewing_MainAssembly/Sources/MainAssembly/ClientListMgr/VwrClientListMgr.swift
@@ -44,7 +44,7 @@ public class VwrClientListMgr: NSViewController {
             .makeSimpleConstraint(.width, relation: .greaterThanOrEqual, value: descriptionWidth)
           NSView()
         }
-        NSStackView.build(.vertical) {
+        NSStackView.build(.vertical, spacing: 6) {
           btnAddClient
             .makeSimpleConstraint(.width, relation: .equal, value: buttonWidth)
           btnRemoveClient