diff --git a/testsuites/unittest/libc/time/clock/full/clock_test_002.cpp b/testsuites/unittest/libc/time/clock/full/clock_test_002.cpp
index de50492fbc31aa6aab9599a980cbb993f2df8dd7..f951d87871ad5fb8827a589fc27e3c98d0c45031 100644
--- a/testsuites/unittest/libc/time/clock/full/clock_test_002.cpp
+++ b/testsuites/unittest/libc/time/clock/full/clock_test_002.cpp
@@ -34,6 +34,7 @@ static void *ThreadFuncTest(void *arg)
 {
     printf("Subthread starting infinite loop\n");
     while (1) {
+        pthread_testcancel();
     }
 }
 
@@ -80,6 +81,9 @@ static int ClockTest(void)
     ret = ThreadClock("Subthread CPU time:   ", clockid);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    ret = pthread_cancel(thread);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
     return 0;
 }