diff --git a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/CandidateCellDataExtension.swift b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/CandidateCellDataExtension.swift
index 08417282..98364cf1 100644
--- a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/CandidateCellDataExtension.swift
+++ b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/CandidateCellDataExtension.swift
@@ -20,7 +20,7 @@ extension CandidateCellData {
         VStack(spacing: 0) {
           HStack(spacing: 4) {
             if UserDefaults.standard.bool(forKey: UserDef.kHandleDefaultCandidateFontsByLangIdentifier.rawValue) {
-              Text(AttributedString(attributedStringHeader)).frame(width: CandidateCellData.unifiedSize * 2 / 3)
+              Text(AttributedString(attributedStringHeader))
               Text(AttributedString(attributedString))
             } else {
               Text(key).font(.system(size: fontSizeKey).monospaced())
diff --git a/Packages/vChewing_Shared/Sources/Shared/CandidateBasicUnits.swift b/Packages/vChewing_Shared/Sources/Shared/CandidateBasicUnits.swift
index 7428d86a..b4116cc4 100644
--- a/Packages/vChewing_Shared/Sources/Shared/CandidateBasicUnits.swift
+++ b/Packages/vChewing_Shared/Sources/Shared/CandidateBasicUnits.swift
@@ -31,7 +31,7 @@ public class CandidateCellData: Hashable {
   public var subIndex: Int = 0
 
   public var fontSizeCandidate: Double { CandidateCellData.unifiedSize }
-  public var fontSizeKey: Double { ceil(CandidateCellData.unifiedSize * 0.8) }
+  public var fontSizeKey: Double { max(ceil(CandidateCellData.unifiedSize * 0.6), 11) }
   public var fontColorKey: NSColor {
     isSelected ? .selectedMenuItemTextColor.withAlphaComponent(0.8) : .secondaryLabelColor
   }
@@ -62,9 +62,9 @@ public class CandidateCellData: Hashable {
     paraStyle.alignment = .natural
     let theFontForCandidateKey: NSFont = {
       if #available(macOS 10.15, *) {
-        return NSFont.monospacedSystemFont(ofSize: size * 0.7, weight: .regular)
+        return NSFont.monospacedSystemFont(ofSize: fontSizeKey, weight: .regular)
       }
-      return NSFont.monospacedDigitSystemFont(ofSize: size * 0.7, weight: .regular)
+      return NSFont.monospacedDigitSystemFont(ofSize: fontSizeKey, weight: .regular)
     }()
     var attrKey: [NSAttributedString.Key: AnyObject] = [
       .font: theFontForCandidateKey,