diff --git a/test/test_go.rb b/test/test_go.rb
index b69f9d9..5a9c48b 100755
--- a/test/test_go.rb
+++ b/test/test_go.rb
@@ -1779,7 +1779,7 @@ class TestGoFZF < TestBase
   def test_accept_or_print_query_without_match
     tmux.send_keys %(seq 1000 | #{fzf('--bind enter:accept-or-print-query')}), :Enter
     tmux.until { |lines| assert_equal 1000, lines.match_count }
-    tmux.send_keys 99999
+    tmux.send_keys 99_999
     tmux.until { |lines| assert_equal 0, lines.match_count }
     tmux.send_keys :Enter
     assert_equal %w[99999], readonce.lines(chomp: true)
@@ -1799,7 +1799,7 @@ class TestGoFZF < TestBase
     tmux.until { |lines| assert_equal 1000, lines.match_count }
     tmux.send_keys :BTab, :BTab, :BTab
     tmux.until { |lines| assert_equal 3, lines.select_count }
-    tmux.send_keys 99999
+    tmux.send_keys 99_999
     tmux.until { |lines| assert_equal 0, lines.match_count }
     tmux.send_keys :Enter
     assert_equal %w[1 2 3], readonce.lines(chomp: true)