diff --git a/Src/LexText/Interlinear/InterlinMaster.cs b/Src/LexText/Interlinear/InterlinMaster.cs
index bede158f41..5d9a139130 100644
--- a/Src/LexText/Interlinear/InterlinMaster.cs
+++ b/Src/LexText/Interlinear/InterlinMaster.cs
@@ -1263,6 +1263,7 @@ public bool OnSetParsingDevMode(object argument)
 			SetParsingDevMode(value == "true");
 			Clerk.UpdateParsingDevStatusBarPanel();
 			// Refresh the display.
+			SaveBookMark();
 			RootStText = null;
 			m_idcAnalyze.ResetAnalysisCache();
 			Clerk.JumpToIndex(Clerk.CurrentIndex);