diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py
index 81027db265..3740c61dc6 100644
--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@ -1468,6 +1468,7 @@ class BBCooker:
             self.updateCacheSync()
 
         if self.state != state.parsing and not self.parsecache_valid:
+            bb.parse.siggen.reset(self.data)
             self.parseConfiguration ()
             if CookerFeatures.SEND_SANITYEVENTS in self.featureset:
                 for mc in self.multiconfigs:
diff --git a/bitbake/lib/bb/siggen.py b/bitbake/lib/bb/siggen.py
index f71190ad4b..4380760e77 100644
--- a/bitbake/lib/bb/siggen.py
+++ b/bitbake/lib/bb/siggen.py
@@ -94,6 +94,9 @@ class SignatureGeneratorBasic(SignatureGenerator):
         else:
             self.checksum_cache = None
 
+    def reset(self, data):
+        self.__init__(data)
+
     def init_rundepcheck(self, data):
         self.taskwhitelist = data.getVar("BB_HASHTASK_WHITELIST") or None
         if self.taskwhitelist: