diff --git a/components/synedit/syneditviewedlinemap.pp b/components/synedit/syneditviewedlinemap.pp
index 79cac3f311..f9055b4224 100644
--- a/components/synedit/syneditviewedlinemap.pp
+++ b/components/synedit/syneditviewedlinemap.pp
@@ -876,20 +876,15 @@ var
   CurrentPage: TSynEditLineMapPageHolder;
 begin
   CurrentPage := FindPageForLine(ALineIdx, afmPrev);
-  if not CurrentPage.HasPage then begin
-    CurrentPage := FirstPage;
-    if not CurrentPage.HasPage then begin
-      CurrentPage := FindPageForLine(ALineIdx, afmCreate);
-      if not CurrentPage.HasPage then
-        exit;
-    end;
-  end;
 
   // inherited => moves any node with FStartLine >= AStartLine
   inherited AdjustForLinesInserted(ALineIdx, ALineCount);
 
-// TODO ::::XXXXX   ONLY if inside the page / otherwise call invalidate
-  CurrentPage.AdjustForLinesInserted(ALineIdx, ALineCount, ABytePos);
+  // CurrentPage.StartLine is still the old value
+  if CurrentPage.HasPage then
+    CurrentPage.AdjustForLinesInserted(ALineIdx, ALineCount, ABytePos)
+  else
+    InvalidateLines(ALineIdx, ALineIdx+ALineCount-1);
 end;
 
 procedure TSynLineMapAVLTree.AdjustForLinesDeleted(AStartLine, ALineCount,