diff --git a/compiler/lex.c b/compiler/lex.c
index ec7aebc..a7b8eeb 100644
--- a/compiler/lex.c
+++ b/compiler/lex.c
@@ -286,7 +286,7 @@ string_literal(LexState *ls)
 	}
 
 	token.id = T_STRING;
-	token.str = (Str){str_buf, i};
+	token.str = Str_from_buf(str_buf, i);
 	token.len = i;
 	return token;
 err: