diff --git a/sleepyhead/oximeterimport.cpp b/sleepyhead/oximeterimport.cpp
index 67adadc8..ea36e615 100644
--- a/sleepyhead/oximeterimport.cpp
+++ b/sleepyhead/oximeterimport.cpp
@@ -863,7 +863,7 @@ void OximeterImport::on_saveButton_clicked()
             // Perfusion Index
             if (rec->perf > 0) {
                 if (lastperf == 0) {
-                    ELperf = session->AddEventList(OXI_Perf, EVL_Event);
+                    ELperf = session->AddEventList(OXI_Perf, EVL_Event, 0.01);
                 }
                 if (lastperf != rec->perf) {
                     if (lastperf > 0) {