diff --git a/src/plugins/remotelinux/abstractremotelinuxdeploystep.cpp b/src/plugins/remotelinux/abstractremotelinuxdeploystep.cpp
index 424ec99bdc7..ba6c827d87a 100644
--- a/src/plugins/remotelinux/abstractremotelinuxdeploystep.cpp
+++ b/src/plugins/remotelinux/abstractremotelinuxdeploystep.cpp
@@ -83,7 +83,13 @@ bool AbstractRemoteLinuxDeployStep::fromMap(const QVariantMap &map)
 
 QVariantMap AbstractRemoteLinuxDeployStep::toMap() const
 {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    QVariantMap map = BuildStep::toMap();
+    map.insert(d->deployService->exportDeployTimes());
+    return map;
+#else
     return BuildStep::toMap().unite(d->deployService->exportDeployTimes());
+#endif
 }
 
 bool AbstractRemoteLinuxDeployStep::init()
diff --git a/src/plugins/remotelinux/tarpackagecreationstep.cpp b/src/plugins/remotelinux/tarpackagecreationstep.cpp
index 0216bedfd7b..5c2c0c53c54 100644
--- a/src/plugins/remotelinux/tarpackagecreationstep.cpp
+++ b/src/plugins/remotelinux/tarpackagecreationstep.cpp
@@ -376,7 +376,11 @@ bool TarPackageCreationStep::fromMap(const QVariantMap &map)
 QVariantMap TarPackageCreationStep::toMap() const
 {
     QVariantMap map = AbstractPackagingStep::toMap();
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    map.insert(m_deployTimes.exportDeployTimes());
+#else
     map.unite(m_deployTimes.exportDeployTimes());
+#endif
     return map;
 }