diff --git a/tests/auto/corelib/kernel/qsystemsemaphore/test/tst_qsystemsemaphore.cpp b/tests/auto/corelib/kernel/qsystemsemaphore/test/tst_qsystemsemaphore.cpp
index a3d90c2dc1b..9e33f56a34f 100644
--- a/tests/auto/corelib/kernel/qsystemsemaphore/test/tst_qsystemsemaphore.cpp
+++ b/tests/auto/corelib/kernel/qsystemsemaphore/test/tst_qsystemsemaphore.cpp
@@ -65,6 +65,7 @@ private slots:
 
     void basicacquire();
     void complexacquire();
+    void release();
 
 #ifndef QT_NO_PROCESS
     void basicProcesses();
@@ -163,6 +164,24 @@ void tst_QSystemSemaphore::complexacquire()
     QCOMPARE(sem.errorString(), QString());
 }
 
+void tst_QSystemSemaphore::release()
+{
+    QSystemSemaphore sem("QSystemSemaphore_release", 0, QSystemSemaphore::Create);
+    QVERIFY(sem.release());
+    QCOMPARE(sem.error(), QSystemSemaphore::NoError);
+    QVERIFY(sem.release());
+    QCOMPARE(sem.error(), QSystemSemaphore::NoError);
+    QVERIFY(sem.acquire());
+    QCOMPARE(sem.error(), QSystemSemaphore::NoError);
+    QVERIFY(sem.acquire());
+    QCOMPARE(sem.error(), QSystemSemaphore::NoError);
+    QVERIFY(sem.release());
+    QCOMPARE(sem.error(), QSystemSemaphore::NoError);
+    QVERIFY(sem.release());
+    QCOMPARE(sem.error(), QSystemSemaphore::NoError);
+    QCOMPARE(sem.errorString(), QString());
+}
+
 #ifndef QT_NO_PROCESS
 void tst_QSystemSemaphore::basicProcesses()
 {