diff --git a/tccrun.c b/tccrun.c
index 1b19dd78..2924322a 100644
--- a/tccrun.c
+++ b/tccrun.c
@@ -1533,6 +1533,9 @@ static long __stdcall cpu_exception_handler(EXCEPTION_POINTERS *ex_info)
 {
     rt_frame f;
     unsigned code;
+#if defined(_WIN64) && defined(__aarch64__) && !defined(CONFIG_TCC_BACKTRACE_ONLY)
+    TCCState *s;
+#endif
     rt_getcontext(ex_info->ContextRecord, &f);
 
     switch (code = ex_info->ExceptionRecord->ExceptionCode) {
@@ -1555,7 +1558,6 @@ static long __stdcall cpu_exception_handler(EXCEPTION_POINTERS *ex_info)
         break;
     }
 #if defined(_WIN64) && defined(__aarch64__) && !defined(CONFIG_TCC_BACKTRACE_ONLY)
-    TCCState *s;
     rt_wait_sem();
     s = rt_find_state(&f);
     rt_post_sem();
diff --git a/tests/libtcc_test_mt.c b/tests/libtcc_test_mt.c
index 4db027f7..23764637 100644
--- a/tests/libtcc_test_mt.c
+++ b/tests/libtcc_test_mt.c
@@ -339,7 +339,12 @@ int main(int argc, char **argv)
 #include <tcclib.h>
 
 #ifdef _WIN32
-void __stdcall Sleep(unsigned int milliseconds);
+# ifdef __i386__
+#  define LIBTCC_TEST_WINAPI __attribute__((__stdcall__))
+# else
+#  define LIBTCC_TEST_WINAPI
+# endif
+void LIBTCC_TEST_WINAPI Sleep(unsigned int milliseconds);
 #else
 unsigned int sleep(unsigned int seconds);
 #endif