diff --git a/src/ops/deactivatevolumegroupoperation.cpp b/src/ops/deactivatevolumegroupoperation.cpp
index c9a5fe9..091b785 100644
--- a/src/ops/deactivatevolumegroupoperation.cpp
+++ b/src/ops/deactivatevolumegroupoperation.cpp
@@ -32,7 +32,8 @@ DeactivateVolumeGroupOperation::DeactivateVolumeGroupOperation(VolumeManagerDevi
     Operation(),
     m_DeactivateVolumeGroupJob(new DeactivateVolumeGroupJob(d)),
     m_DeactivateLogicalVolumeJob(new DeactivateLogicalVolumeJob(d)),
-    m_Device(d)
+    m_Device(d),
+    m_PartitionTable(d.partitionTable())
 {
     addJob(deactivateLogicalVolumeJob());
     addJob(deactivateVolumeGroupJob());
@@ -45,8 +46,14 @@ QString DeactivateVolumeGroupOperation::description() const
 
 void DeactivateVolumeGroupOperation::preview()
 {
+    device().setPartitionTable(new PartitionTable(PartitionTable::vmd, 0, device().totalLogical() - 1));
 }
 
 void DeactivateVolumeGroupOperation::undo()
 {
+    PartitionTable* tmp = device().partitionTable();
+    if (tmp != partitionTable()) {
+        device().setPartitionTable(partitionTable());
+        delete tmp;
+    }
 }
diff --git a/src/ops/deactivatevolumegroupoperation.h b/src/ops/deactivatevolumegroupoperation.h
index bdd94b6..d462ea1 100644
--- a/src/ops/deactivatevolumegroupoperation.h
+++ b/src/ops/deactivatevolumegroupoperation.h
@@ -30,6 +30,7 @@ class DeactivateLogicalVolumeJob;
 class DeactivateVolumeGroupJob;
 class VolumeManagerDevice;
 class OperationStack;
+class PartitionTable;
 
 class LIBKPMCORE_EXPORT DeactivateVolumeGroupOperation : public Operation
 {
@@ -70,10 +71,15 @@ protected:
         return m_Device;
     }
 
+    PartitionTable* partitionTable() {
+        return m_PartitionTable;
+    }
+
 private:
     DeactivateVolumeGroupJob* m_DeactivateVolumeGroupJob;
     DeactivateLogicalVolumeJob* m_DeactivateLogicalVolumeJob;
     VolumeManagerDevice& m_Device;
+    PartitionTable* m_PartitionTable;
 };
 
 #endif