diff --git a/tests/suites/test_suite_x509write.data b/tests/suites/test_suite_x509write.data
index f46d19d584..869ea7f595 100644
--- a/tests/suites/test_suite_x509write.data
+++ b/tests/suites/test_suite_x509write.data
@@ -270,4 +270,4 @@ Check max extension length (Max-1)
 x509_set_extension_length_check:0xFFFFFFFE
 
 Check max extension length (Max)
-x509_set_extension_length_check:0xFFFFFFFF
+x509_set_extension_length_check:SIZE_MAX