--- a/Framework/Plugins/DatabaseBackendAdapterV2.cpp	Tue Mar 28 11:40:07 2023 +0200
+++ b/Framework/Plugins/DatabaseBackendAdapterV2.cpp	Tue Mar 28 12:47:54 2023 +0200
@@ -1632,17 +1632,21 @@
 
   void DatabaseBackendAdapterV2::Register(IDatabaseBackend* backend)
   {
-    if (backend == NULL)
     {
-      throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
-    }
+      std::unique_ptr<IDatabaseBackend> protection(backend);
+    
+      if (backend == NULL)
+      {
+        throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
+      }
 
-    if (adapter_.get() != NULL)
-    {
-      throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
+      if (adapter_.get() != NULL)
+      {
+        throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
+      }
+
+      adapter_.reset(new Adapter(protection.release()));
     }
-
-    adapter_.reset(new Adapter(backend));
     
     OrthancPluginDatabaseBackend  params;
     memset(&params, 0, sizeof(params));