diff --git a/lib/bb/cooker.py b/lib/bb/cooker.py
index 939a999974..076ddaa58d 100644
--- a/lib/bb/cooker.py
+++ b/lib/bb/cooker.py
@@ -680,14 +680,14 @@ class BBCooker:
         bb.event.fire(bb.event.TreeDataPreparationCompleted(len(fulltargetlist)), self.data)
         return taskdata, runlist
 
-    def prepareTreeData(self, pkgs_to_build, task):
+    def prepareTreeData(self, pkgs_to_build, task, halt=False):
         """
         Prepare a runqueue and taskdata object for iteration over pkgs_to_build
         """
 
         # We set halt to False here to prevent unbuildable targets raising
         # an exception when we're just generating data
-        taskdata, runlist = self.buildTaskData(pkgs_to_build, task, False, allowincomplete=True)
+        taskdata, runlist = self.buildTaskData(pkgs_to_build, task, halt, allowincomplete=True)
 
         return runlist, taskdata
 
@@ -701,7 +701,7 @@ class BBCooker:
         if not task.startswith("do_"):
             task = "do_%s" % task
 
-        runlist, taskdata = self.prepareTreeData(pkgs_to_build, task)
+        runlist, taskdata = self.prepareTreeData(pkgs_to_build, task, halt=True)
         rq = bb.runqueue.RunQueue(self, self.data, self.recipecaches, taskdata, runlist)
         rq.rqdata.prepare()
         return self.buildDependTree(rq, taskdata)