diff --git a/src/lexer/lex.l b/src/lexer/lex.l
index 8750ed5d9c2c66809f51b555f112d073b4d7b69b..c0f299d000d681363fd6419a8509f93aaec2a5d3 100644
--- a/src/lexer/lex.l
+++ b/src/lexer/lex.l
@@ -184,9 +184,9 @@ tokenIdent *defineToken(char *str,size_t len){
     }
     return t;
 }
-extern FILE *yyout;
+// extern FILE *yyout;
 Token next(){
-    yyout = NULL;
+    // yyout = NULL;
     curTok = yylex();
     return curTok;
 }
diff --git a/src/lexer/lex.yy.c b/src/lexer/lex.yy.c
index 552a7c67dbb4f9a8006287a9ef057a858c9fbd7c..c44c5349a05bda6c2deaccdfabe00b97be142385 100644
--- a/src/lexer/lex.yy.c
+++ b/src/lexer/lex.yy.c
@@ -1960,9 +1960,9 @@ tokenIdent *defineToken(char *str,size_t len){
     }
     return t;
 }
-extern FILE *yyout;
+// extern FILE *yyout;
 Token next(){
-    yyout = NULL;
+    // yyout = NULL;
     curTok = yylex();
     return curTok;
 }