diff --git a/src/testdir/test_edit.vim b/src/testdir/test_edit.vim
index 8c4d9f2..f0dd446 100644
--- a/src/testdir/test_edit.vim
+++ b/src/testdir/test_edit.vim
@@ -1232,9 +1232,11 @@
   call test_setmouse(4, 3)
   call feedkeys("A\<LeftMouse>\<esc>", 'tnix')
   call assert_equal([0, 27, 2, 0], getpos('.'))
+  set mousemodel=extend
   call test_setmouse(5, 3)
   call feedkeys("A\<RightMouse>\<esc>\<esc>", 'tnix')
   call assert_equal([0, 28, 2, 0], getpos('.'))
+  set mousemodel&
   call cursor(1, 100)
   norm! zt
   " this should move by a screen up, but when the test