diff --git a/tests/tests2/125_atomic_misc.c b/tests/tests2/125_atomic_misc.c
index 75cdba28..40e7cba8 100644
--- a/tests/tests2/125_atomic_misc.c
+++ b/tests/tests2/125_atomic_misc.c
@@ -82,7 +82,7 @@ int main()
 #elif defined test_atomic_warn_1
 int main()
 {
-    int _Atomic i = 1;
+    size_t _Atomic i = 1;
     /* assignment to integer from pointer */
     atomic_store(&i, &i);
 }