diff --git a/wa/framework/job.py b/wa/framework/job.py
index 127da658..94d0f95e 100644
--- a/wa/framework/job.py
+++ b/wa/framework/job.py
@@ -37,10 +37,6 @@ class Job(object):
     def label(self):
         return self.spec.label
 
-    @property
-    def classifiers(self):
-        return self.spec.classifiers
-
     @property
     def status(self):
         return self._status
@@ -64,6 +60,7 @@ class Job(object):
         self.output = None
         self.run_time = None
         self.retries = 0
+        self.classifiers = copy(self.spec.classifiers)
         self._has_been_initialized = False
         self._status = Status.NEW