diff --git a/tests/unit/test_x86.c b/tests/unit/test_x86.c
index f403dfb2..8e9d7cd3 100644
--- a/tests/unit/test_x86.c
+++ b/tests/unit/test_x86.c
@@ -1124,7 +1124,10 @@ static void test_x86_invalid_vex_l(void)
     OK(uc_close(uc));
 }
 
-#ifndef TARGET_READ_INLINED
+// AARCH64 inline the read while s390x won't split the access. Though not tested on other hosts
+// but we restrict a bit more.
+#if !defined(TARGET_READ_INLINED) && defined(BOOST_LITTLE_ENDIAN)
+
 struct writelog_t {
     uint32_t addr, size;
 };