diff --git a/util/dtc/dtc-lexer.l b/util/dtc/dtc-lexer.l
index d299befbf7..8c10917608 100644
--- a/util/dtc/dtc-lexer.l
+++ b/util/dtc/dtc-lexer.l
@@ -49,7 +49,7 @@ YY_BUFFER_STATE bstack = NULL;
 void
 switchin(FILE *f){
 	YY_BUFFER_STATE b;
-	bstack = yy_current_buffer;
+	bstack = YY_CURRENT_BUFFER;
 	b = yy_create_buffer(f, 8192);
 	yy_switch_to_buffer(b);