diff --git a/dlls/riched20/editor.c b/dlls/riched20/editor.c
index 95d11dc0a08..02358d3a96e 100644
--- a/dlls/riched20/editor.c
+++ b/dlls/riched20/editor.c
@@ -2151,7 +2151,10 @@ LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lP
   }
   case EM_EXLINEFROMCHAR:
   {
-    return ME_RowNumberFromCharOfs(editor, lParam);
+    if (lParam == -1)
+      return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,1));
+    else    
+      return ME_RowNumberFromCharOfs(editor, lParam);
   }
   case EM_LINEINDEX:
   {