diff --git a/libkirk/ltp.py b/libkirk/ltp.py
index 0ee942c..12e84eb 100644
--- a/libkirk/ltp.py
+++ b/libkirk/ltp.py
@@ -362,7 +362,9 @@ async def read_result(
                 elif not error:
                     failed = 1
 
-        if retcode in (2, -1):
+        if retcode == 0:
+            status = ResultStatus.PASS
+        elif retcode in (2, -1):
             status = ResultStatus.BROK
         elif retcode == 4:
             status = ResultStatus.WARN