diff --git a/ext/bz2/tests/bzdecompress_input_too_large.phpt b/ext/bz2/tests/bzdecompress_input_too_large.phpt
index 88c93d366c54..9774c6dbbfd6 100644
--- a/ext/bz2/tests/bzdecompress_input_too_large.phpt
+++ b/ext/bz2/tests/bzdecompress_input_too_large.phpt
@@ -10,6 +10,8 @@ if (!getenv('RUN_RESOURCE_HEAVY_TESTS')) die('skip resource-heavy test');
 if (getenv('SKIP_SLOW_TESTS')) die('skip slow test');
 if (PHP_INT_SIZE != 8) die('skip 64-bit only');
 ?>
+--CONFLICTS--
+all
 --FILE--
 <?php
 
diff --git a/ext/bz2/tests/gh20620.phpt b/ext/bz2/tests/gh20620.phpt
index a7ab0a3c843f..bea0133549ff 100644
--- a/ext/bz2/tests/gh20620.phpt
+++ b/ext/bz2/tests/gh20620.phpt
@@ -8,6 +8,8 @@ if (!getenv('RUN_RESOURCE_HEAVY_TESTS')) die('skip resource-heavy test');
 if (PHP_INT_SIZE != 8) die('skip this test is for 64bit platforms only'); 
 if (getenv('SKIP_SLOW_TESTS')) die('skip slow tests excluded by request');
 ?>
+--CONFLICTS--
+all
 --INI--
 memory_limit=-1
 --FILE--