diff --git a/autotests/kformattest.cpp b/autotests/kformattest.cpp
--- a/autotests/kformattest.cpp
+++ b/autotests/kformattest.cpp
@@ -292,14 +292,14 @@
 
     QCOMPARE(format.formatDecimalDuration(10), QStringLiteral("10 millisecond(s)"));
     QCOMPARE(format.formatDecimalDuration(10, 3), QStringLiteral("10 millisecond(s)"));
-    QCOMPARE(format.formatDecimalDuration(1 * MSecsInSecond + 10), QStringLiteral("1.01 seconds"));
-    QCOMPARE(format.formatDecimalDuration(1 * MSecsInSecond + 1, 3), QStringLiteral("1.001 seconds"));
-    QCOMPARE(format.formatDecimalDuration(1 * MSecsInMinute + 10 * MSecsInSecond), QStringLiteral("1.17 minutes"));
-    QCOMPARE(format.formatDecimalDuration(1 * MSecsInMinute + 10 * MSecsInSecond, 3), QStringLiteral("1.167 minutes"));
-    QCOMPARE(format.formatDecimalDuration(1 * MSecsInHour + 10 * MSecsInMinute), QStringLiteral("1.17 hours"));
-    QCOMPARE(format.formatDecimalDuration(1 * MSecsInHour + 10 * MSecsInMinute, 3), QStringLiteral("1.167 hours"));
-    QCOMPARE(format.formatDecimalDuration(1 * MSecsInDay + 10 * MSecsInHour), QStringLiteral("1.42 days"));
-    QCOMPARE(format.formatDecimalDuration(1 * MSecsInDay + 10 * MSecsInHour, 3), QStringLiteral("1.417 days"));
+    QCOMPARE(format.formatDecimalDuration(1 * MSecsInSecond + 10), QStringLiteral("1.01 second(s)"));
+    QCOMPARE(format.formatDecimalDuration(1 * MSecsInSecond + 1, 3), QStringLiteral("1.001 second(s)"));
+    QCOMPARE(format.formatDecimalDuration(1 * MSecsInMinute + 10 * MSecsInSecond), QStringLiteral("1.17 minute(s)"));
+    QCOMPARE(format.formatDecimalDuration(1 * MSecsInMinute + 10 * MSecsInSecond, 3), QStringLiteral("1.167 minute(s)"));
+    QCOMPARE(format.formatDecimalDuration(1 * MSecsInHour + 10 * MSecsInMinute), QStringLiteral("1.17 hour(s())"));
+    QCOMPARE(format.formatDecimalDuration(1 * MSecsInHour + 10 * MSecsInMinute, 3), QStringLiteral("1.167 hour(s)"));
+    QCOMPARE(format.formatDecimalDuration(1 * MSecsInDay + 10 * MSecsInHour), QStringLiteral("1.42 day(s)"));
+    QCOMPARE(format.formatDecimalDuration(1 * MSecsInDay + 10 * MSecsInHour, 3), QStringLiteral("1.417 day(s)"));
 }
 
 void KFormatTest::formatSpelloutDuration()