diff --git a/oscar/SleepLib/loader_plugins/resvent_loader.cpp b/oscar/SleepLib/loader_plugins/resvent_loader.cpp
index 7238c352..216bbe90 100644
--- a/oscar/SleepLib/loader_plugins/resvent_loader.cpp
+++ b/oscar/SleepLib/loader_plugins/resvent_loader.cpp
@@ -323,6 +323,8 @@ void LoadEvents(const QString& session_folder_path, Session* session, const Usag
     std::for_each(mapping.cbegin(), mapping.cend(), [&](EventType event_type){
         UpdateEvents(event_type, events, session);
     });
+    session->settings[CPAP_PressureMin] = 4.0;
+    session->settings[CPAP_PressureMax] = qMax(session->calcMax(CPAP_Pressure),session->calcMax(CPAP_IPAP));
 }
 
 template <typename T>