diff --git a/ext/zend_test/tests/opline_dangling.phpt b/ext/zend_test/tests/opline_dangling.phpt
index b411223cecf..3b27b544ca3 100644
--- a/ext/zend_test/tests/opline_dangling.phpt
+++ b/ext/zend_test/tests/opline_dangling.phpt
@@ -4,6 +4,8 @@ possible segfault in `ZEND_BIND_STATIC`
 https://github.com/php/php-src/pull/12758
 --EXTENSIONS--
 zend_test
+--ENV--
+USE_ZEND_ALLOC=1
 --INI--
 zend_test.observe_opline_in_zendmm=1
 --FILE--
diff --git a/ext/zend_test/tests/opline_dangling_02.phpt b/ext/zend_test/tests/opline_dangling_02.phpt
index 1537bc68c18..585a9c8395b 100644
--- a/ext/zend_test/tests/opline_dangling_02.phpt
+++ b/ext/zend_test/tests/opline_dangling_02.phpt
@@ -1,8 +1,9 @@
 --TEST--
 possible segfault in `ZEND_FUNC_GET_ARGS`
---DESCRIPTION--
 --EXTENSIONS--
 zend_test
+--ENV--
+USE_ZEND_ALLOC=1
 --INI--
 zend_test.observe_opline_in_zendmm=1
 --FILE--