diff --git a/testsuites/unittest/libc/util/smoke/util_test_005.cpp b/testsuites/unittest/libc/util/smoke/util_test_005.cpp
index 332f625119ad3f6d913ecc6b9f83af29b1d12607..5b2ee32b4d4b819c4a5153e206ac58596759ceb6 100644
--- a/testsuites/unittest/libc/util/smoke/util_test_005.cpp
+++ b/testsuites/unittest/libc/util/smoke/util_test_005.cpp
@@ -40,7 +40,7 @@ static UINT32 TestCase(VOID)
     lcong48(seed);
     x = mrand48();
     if ((x < -MRAND48_NUM) || (x > MRAND48_NUM)) {
-        printf("[IN %s][line %d] x = %d\n", __FUNCTION__, __LINE__, x);
+        printf("[IN %s][line %d] x = %ld\n", __FUNCTION__, __LINE__, x);
         goto EXIT;
     }