diff --git a/tests/base.py b/tests/base.py
index 02953f5..6d2c64d 100755
--- a/tests/base.py
+++ b/tests/base.py
@@ -758,6 +758,8 @@
         self.running_builds.remove(build)
         del self.job_builds[job.unique]
         self.lock.release()
+        if build.run_error:
+            result = None
         return result