diff --git a/src/testdir/dumps/Test_tabpanel_only_1.dump b/src/testdir/dumps/Test_tabpanel_only_1.dump
index 19e85b8..8cbd93b 100644
--- a/src/testdir/dumps/Test_tabpanel_only_1.dump
+++ b/src/testdir/dumps/Test_tabpanel_only_1.dump
@@ -1,10 +1,10 @@
-|a+0&#ffffff0|s|d|f| @24||+1&&|a+0&&|s|d|f| @43
-|a|s|d|f| @24||+1&&|a+0&&|s|d|f| @43
-|a|s|d|f| @24||+1&&|a+0&&|s|d|f| @43
-|a|s|d|f| @24||+1&&|a+0&&|s|d|f| @43
-|a|s|d|f| @24||+1&&|a+0&&|s|d|f| @43
-|a|s|d|f| @24||+1&&|a+0&&|s|d|f| @43
-|a|s|d|f| @24||+1&&|a+0&&|s|d|f| @43
-|a|s|d>f| @24||+1&&|a+0&&|s|d|f| @43
-|[+3&&|N|o| |N|a|m|e|]| |[|+|]| @1|1|0|1|,|4| @5|B|o|t| |[+1&&|N|o| |N|a|m|e|]| |[|+|]| @16|1|0|1|,|4| @9|B|o|t
+|a+0&#ffffff0|s|d|f| @34||+1&&|a+0&&|s|d|f| @33
+|a|s|d|f| @34||+1&&|a+0&&|s|d|f| @33
+|a|s|d|f| @34||+1&&|a+0&&|s|d|f| @33
+|a|s|d|f| @34||+1&&|a+0&&|s|d|f| @33
+|a|s|d|f| @34||+1&&|a+0&&|s|d|f| @33
+|a|s|d|f| @34||+1&&|a+0&&|s|d|f| @33
+|a|s|d|f| @34||+1&&|a+0&&|s|d|f| @33
+|a|s|d>f| @34||+1&&|a+0&&|s|d|f| @33
+|[+3&&|N|o| |N|a|m|e|]| |[|+|]| @7|1|0|1|,|4| @9|B|o|t| |[+1&&|N|o| |N|a|m|e|]| |[|+|]| @6|1|0|1|,|4| @9|B|o|t
 |:+0&&|t|a|b|o|n|l|y| @69
diff --git a/src/testdir/dumps/Test_tabpanel_stpl_eq_0_2.dump b/src/testdir/dumps/Test_tabpanel_stpl_eq_0_2.dump
new file mode 100644
index 0000000..4fe5c93
--- /dev/null
+++ b/src/testdir/dumps/Test_tabpanel_stpl_eq_0_2.dump
@@ -0,0 +1,10 @@
+|3+2#e000e06#ffffff0|++2#0000000&| |b@2| @14|3+2#e000e06&|++2#0000000&| |b@2| | +8#0000001#e0e0e08|0@3| | +1#0000000#ffffff0@42|X+8#0000001#e0e0e08
+|0@3| @15> +0#0000000#ffffff0@19||+1&&| +0&&@17||+1&&|a+0&&@2| @14
+| +1&&@19|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @16||+1#0000000&|b+0&&@2| @14
+| +1&&@19|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @16||+1#0000000&|c+0&&@2| @14
+| +1&&@19|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @16||+1#0000000&|d+0&&@2| @14
+| +1&&@19|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @16||+1#0000000&|~+0#4040ff13&| @16
+| +1#0000000&@19|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @16||+1#0000000&|~+0#4040ff13&| @16
+| +1#0000000&@19|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @16||+1#0000000&|~+0#4040ff13&| @16
+| +1#0000000&@19|b+3&&@2| @17|a+1&&@2| @15|[|N|o| |N|a|m|e|]| |[|+|]| @4
+| +0&&@77
diff --git a/src/testdir/dumps/Test_tabpanel_stpl_eq_0_3.dump b/src/testdir/dumps/Test_tabpanel_stpl_eq_0_3.dump
new file mode 100644
index 0000000..e6b47ed
--- /dev/null
+++ b/src/testdir/dumps/Test_tabpanel_stpl_eq_0_3.dump
@@ -0,0 +1,10 @@
+| +2&#ffffff0|3+2#e000e06&|++2#0000000&| |b@2| | +8#0000001#e0e0e08|0@3| | +1#0000000#ffffff0@62|X+8#0000001#e0e0e08
+> +0#0000000#ffffff0@25||+1&&| +0&&@24||+1&&|a+0&&@2| @21
+|~+0#4040ff13&| @24||+1#0000000&|~+0#4040ff13&| @23||+1#0000000&|b+0&&@2| @21
+|~+0#4040ff13&| @24||+1#0000000&|~+0#4040ff13&| @23||+1#0000000&|c+0&&@2| @21
+|~+0#4040ff13&| @24||+1#0000000&|~+0#4040ff13&| @23||+1#0000000&|d+0&&@2| @21
+|~+0#4040ff13&| @24||+1#0000000&|~+0#4040ff13&| @23||+1#0000000&|~+0#4040ff13&| @23
+|~| @24||+1#0000000&|~+0#4040ff13&| @23||+1#0000000&|~+0#4040ff13&| @23
+|~| @24||+1#0000000&|~+0#4040ff13&| @23||+1#0000000&|~+0#4040ff13&| @23
+|b+3#0000000&@2| @23|a+1&&@2| @22|[|N|o| |N|a|m|e|]| |[|+|]| @11
+| +0&&@77
diff --git a/src/testdir/test_tabpanel.vim b/src/testdir/test_tabpanel.vim
index 1790fee..4d2fca1 100644
--- a/src/testdir/test_tabpanel.vim
+++ b/src/testdir/test_tabpanel.vim
@@ -26,6 +26,14 @@
   call VerifyScreenDump(buf, 'Test_tabpanel_stpl_eq_0_0', {})
   call term_sendkeys(buf, ":tabnext\<CR>\<C-L>")
   call VerifyScreenDump(buf, 'Test_tabpanel_stpl_eq_0_1', {})
+  call term_sendkeys(buf, ":set showtabpanel=2\<CR>")
+  call term_sendkeys(buf, ":vsp aaa\<CR>:vsp bbb\<CR>\<C-L>")
+  call VerifyScreenDump(buf, 'Test_tabpanel_stpl_eq_0_2', {})
+  call term_sendkeys(buf, ":set showtabpanel=0\<CR>\<C-L>")
+  call VerifyScreenDump(buf, 'Test_tabpanel_stpl_eq_0_3', {})
+  call term_sendkeys(buf, ":wincmd |\<CR>")
+  call term_sendkeys(buf, ":set showtabpanel=2\<CR>\<C-L>")
+  call VerifyScreenDump(buf, 'Test_tabpanel_stpl_eq_0_2', {})
   call StopVimInTerminal(buf)
 endfunc