diff --git a/testsuites/unittest/posix/src/posix_test.c b/testsuites/unittest/posix/src/posix_test.c
index 1494d7ba373e2c2e51bf56fd9de3880cddf2aa26..ca9f82643edcf87fdb14147b74cc1e2b24bd8f35 100644
--- a/testsuites/unittest/posix/src/posix_test.c
+++ b/testsuites/unittest/posix/src/posix_test.c
@@ -58,6 +58,7 @@ void ItSuitePosix(void)
     PosixStringFuncTest02();
     PosixStringStrcasecmpFuncTest();
     PosixStringFuncTest03();
+    PosixStringStrstrTest();
 #if (LOS_KERNEL_TEST_FULL == 1)
     PosixSemaphoreFuncTest();
     PosixTimeFuncTest();