diff --git a/src/cceditor/ccnotepad.cpp b/src/cceditor/ccnotepad.cpp
index 0818475d88d2c80d4e83fe93c77566291e25bb19..4547a89c3e2840961f74b103168ce3b784e482b9 100755
--- a/src/cceditor/ccnotepad.cpp
+++ b/src/cceditor/ccnotepad.cpp
@@ -1,4 +1,4 @@
-#include <memory>
+#include <memory>
 #include "ccnotepad.h"
 #include "filemanager.h"
 #include "Encode.h"
@@ -1087,6 +1087,12 @@ LexerInfo CCNotePad::getLangLexerIdByFileExt(QString filePath)
 		return lexer;
 	}
 
+    // 如果没有获取都，再获取一次小写后缀的，适配一下没有设置自定义格式的语言
+    if(ExtLexerManager::getInstance()->getLexerTypeByExt(ext.toLower(), lexer))
+	{
+		return lexer;
+	}
+
 	return lexer;
 }