diff --git a/src/testdir/dumps/Test_popupwin_showbreak.dump b/src/testdir/dumps/Test_popupwin_showbreak.dump
index e7d03d0..8ce0a75 100644
--- a/src/testdir/dumps/Test_popupwin_showbreak.dump
+++ b/src/testdir/dumps/Test_popupwin_showbreak.dump
@@ -1,10 +1,10 @@
 >1+0&#ffffff0| @73
 |2| @73
-|3| @73
-|4| @25|╔+0#0000001#ffd7ff255|═@17|╗| +0#0000000#ffffff0@27
-|5| @25|║+0#0000001#ffd7ff255| |a| |l|o|n|g| |l|i|n|e| |h|e|r|e| |║| +0#0000000#ffffff0@27
-|6| @25|╚+0#0000001#ffd7ff255|═@17|╝| +0#0000000#ffffff0@27
-|7| @73
+|3| @27|╔+0#0000001#ffd7ff255|═@13|╗| +0#0000000#ffffff0@29
+|4| @27|║+0#0000001#ffd7ff255| |a| |l|o|n|g| |l|i|n|e| @1|║| +0#0000000#ffffff0@29
+|5| @27|║+0#0000001#ffd7ff255| |>+0#4040ff13&@1| |h+0#0000001&|e|r|e| |t|h|a|t| |║| +0#0000000#ffffff0@29
+|6| @27|║+0#0000001#ffd7ff255| |>+0#4040ff13&@1| | +0#0000001&|w|r|a|p|s| @3|║| +0#0000000#ffffff0@29
+|7| @27|╚+0#0000001#ffd7ff255|═@13|╝| +0#0000000#ffffff0@29
 |8| @73
 |9| @73
 @57|1|,|1| @10|T|o|p| 
diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
index feb8ce3..de8a23f 100644
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -797,8 +797,9 @@
 	 set showbreak=>>\ 
 	 call setline(1, range(1, 20))
 	 let winid = popup_dialog(
-	   \ 'a long line here',
-	   \ #{filter: 'popup_filter_yesno'})
+	   \ 'a long line here that wraps',
+	   \ #{filter: 'popup_filter_yesno',
+	   \   maxwidth: 12})
   END
   call writefile(lines, 'XtestPopupShowbreak')
   let buf = RunVimInTerminal('-S XtestPopupShowbreak', #{rows: 10})