Index: tests/alloc2.cfa
===================================================================
--- tests/alloc2.cfa	(revision ab1b971e619522ae51be851c9a3fbf478c0d978a)
+++ tests/alloc2.cfa	(revision 4f3a4d75e7b577ec292ebbbeafb3eb9e9cb40c0f)
@@ -16,5 +16,5 @@
 	bool passed = (malloc_size(ip) == size) && (malloc_usable_size(ip) >= size) && (malloc_alignment(ip) == align) && ((uintptr_t)ip % align  == 0);
 	if (!passed) {
-		printf("failed test %3d: %4lu %4lu but got %4lu ( %3lu ) %4lu\n", tests_total, size, align, malloc_size(ip), malloc_usable_size(ip), malloc_alignment(ip));
+		printf("failed test %3d: %4zu %4zu but got %4zu ( %3zu ) %4zu\n", tests_total, size, align, malloc_size(ip), malloc_usable_size(ip), malloc_alignment(ip));
 		tests_failed += 1;
 	}