diff --git a/testsuite/uptime.test/uptime.exp b/testsuite/uptime.test/uptime.exp
index f832a77c..4b0d28da 100644
--- a/testsuite/uptime.test/uptime.exp
+++ b/testsuite/uptime.test/uptime.exp
@@ -10,3 +10,8 @@ expect_pass "$test" "^\\s+\\d{2}:\\d{2}:\\d{2} up (\\d+ days?,)?\\s*\\d+( min|:\
 set test "uptime since option"
 spawn $uptime --since
 expect_pass "$test" "^\\d{4}-\\d{2}-\\d{2} \\d{2}:\\d{2}:\\d{2}\\s*$"
+
+set test "uptime pretty option"
+spawn $uptime --pretty
+expect_pass "$test" "up (\\d+ decades?, )?(\\d+ years?, )?(\\d+ weeks?, )?(\\d+ days?, )?(\\d+ hours?, )?(\\d+ minutes?)\\s*$"
+