diff --git a/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift b/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
index 676907b0..e5aca9f7 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
@@ -62,8 +62,9 @@ extension vChewing {
 
       for (lineID, lineContent) in arrData.enumerated() {
         if !lineContent.hasPrefix("#") {
+          let lineContent = lineContent.replacingOccurrences(of: "\t", with: " ")
           if lineContent.components(separatedBy: " ").count < 2 {
-            if arrData.last != "" {
+            if lineContent != "", lineContent != " " {
               IME.prtDebugIntel("Line #\(lineID + 1) Wrecked: \(lineContent)")
             }
             continue
diff --git a/Source/Modules/LangModelRelated/SubLMs/lmCore.swift b/Source/Modules/LangModelRelated/SubLMs/lmCore.swift
index 158fd3ef..8e63ceee 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmCore.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmCore.swift
@@ -77,7 +77,7 @@ extension vChewing {
         if !lineContent.hasPrefix("#") {
           let lineContent = lineContent.replacingOccurrences(of: "\t", with: " ")
           if lineContent.components(separatedBy: " ").count < 2 {
-            if arrData.last != "" {
+            if lineContent != "", lineContent != " " {
               IME.prtDebugIntel("Line #\(lineID + 1) Wrecked: \(lineContent)")
             }
             continue
diff --git a/Source/Modules/LangModelRelated/SubLMs/lmLite.swift b/Source/Modules/LangModelRelated/SubLMs/lmLite.swift
index b3e8875c..62e3ebac 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmLite.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmLite.swift
@@ -66,8 +66,9 @@ extension vChewing {
 
       for (lineID, lineContent) in arrData.enumerated() {
         if !lineContent.hasPrefix("#") {
+          let lineContent = lineContent.replacingOccurrences(of: "\t", with: " ")
           if lineContent.components(separatedBy: " ").count < 2 {
-            if arrData.last != "" {
+            if lineContent != "", lineContent != " " {
               IME.prtDebugIntel("Line #\(lineID + 1) Wrecked: \(lineContent)")
             }
             continue
diff --git a/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift b/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift
index 15793cd3..6b04ac45 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift
@@ -63,8 +63,9 @@ extension vChewing {
 
       for (lineID, lineContent) in arrData.enumerated() {
         if !lineContent.hasPrefix("#") {
+          let lineContent = lineContent.replacingOccurrences(of: "\t", with: " ")
           if lineContent.components(separatedBy: " ").count < 2 {
-            if arrData.last != "" {
+            if lineContent != "", lineContent != " " {
               IME.prtDebugIntel("Line #\(lineID + 1) Wrecked: \(lineContent)")
             }
             continue