diff --git a/bitbake/lib/bb/runqueue.py b/bitbake/lib/bb/runqueue.py
index 3300bb4f98..cd10da8b3a 100644
--- a/bitbake/lib/bb/runqueue.py
+++ b/bitbake/lib/bb/runqueue.py
@@ -933,6 +933,7 @@ class RunQueueData:
             for tid in list(self.runtaskentries.keys()):
                 if tid not in runq_build:
                    reduced_tasklist.remove(tid)
+            runq_build = {}
 
             for task in self.cooker.configuration.runall:
                 if not task.startswith("do_"):