diff --git a/computedfields/management/commands/checkdata.py b/computedfields/management/commands/checkdata.py
index db63c06..709671b 100644
--- a/computedfields/management/commands/checkdata.py
+++ b/computedfields/management/commands/checkdata.py
@@ -72,7 +72,8 @@ def handle(self, *app_labels, **options):
         end_time = time()
         duration = int(end_time - start_time)
         self.eprint(f'\nTotal check time: {timedelta(seconds=duration)}')
-        sys.exit(1 if has_desync else 0)
+        if has_desync:
+            raise CommandError('Desync data found.', returncode=1)
     
     @transaction.atomic
     def action_check(self, models, progress, size, json_out):