diff --git a/src/libsync/propagateupload.h b/src/libsync/propagateupload.h
index db70b566c..31e9067d6 100644
--- a/src/libsync/propagateupload.h
+++ b/src/libsync/propagateupload.h
@@ -184,8 +184,8 @@ class PropagateUploadFileCommon : public PropagateItemJob {
 
 protected:
     QVector<AbstractNetworkJob*> _jobs; /// network jobs that are currently in transit
-    bool _finished; /// Tells that all the jobs have been finished
-    bool _deleteExisting;
+    bool _finished BITFIELD(1); /// Tells that all the jobs have been finished
+    bool _deleteExisting BITFIELD(1);
 
     // measure the performance of checksum calc and upload
 #ifdef WITH_TESTING