diff --git a/ext/opcache/tests/issue0115.phpt b/ext/opcache/tests/issue0115.phpt
index 5e32e1f6fb66d..c31f72e8c63b0 100644
--- a/ext/opcache/tests/issue0115.phpt
+++ b/ext/opcache/tests/issue0115.phpt
@@ -33,7 +33,13 @@ $p->setStub($stub);
 unset($p);
 
 include "php_cli_server.inc";
-php_cli_server_start('-d opcache.enable=1 -d opcache.enable_cli=1 -d extension=phar.'.PHP_SHLIB_SUFFIX);
+
+$ini = '-d opcache.enable=1 -d opcache.enable_cli=1';
+if (file_exists(ini_get('extension_dir').'/phar.'.PHP_SHLIB_SUFFIX)) {
+    $ini .= ' -d extension=phar.'.PHP_SHLIB_SUFFIX;
+}
+php_cli_server_start($ini);
+
 echo file_get_contents('http://' . PHP_CLI_SERVER_ADDRESS . '/issue0115_1.phar.php');
 echo file_get_contents('http://' . PHP_CLI_SERVER_ADDRESS . '/issue0115_2.phar.php');
 ?>
diff --git a/ext/opcache/tests/issue0149.phpt b/ext/opcache/tests/issue0149.phpt
index a72a4bc4ee650..29e6f02808a75 100644
--- a/ext/opcache/tests/issue0149.phpt
+++ b/ext/opcache/tests/issue0149.phpt
@@ -21,7 +21,13 @@ $p->setStub($stub);
 unset($p);
 
 include "php_cli_server.inc";
-php_cli_server_start('-d opcache.enable=1 -d opcache.enable_cli=1 -d extension=phar.'.PHP_SHLIB_SUFFIX);
+
+$ini = '-d opcache.enable=1 -d opcache.enable_cli=1';
+if (file_exists(ini_get('extension_dir').'/phar.'.PHP_SHLIB_SUFFIX)) {
+    $ini .= ' -d extension=phar.'.PHP_SHLIB_SUFFIX;
+}
+php_cli_server_start($ini);
+
 echo file_get_contents('http://' . PHP_CLI_SERVER_ADDRESS . '/issue0149.phar.php');
 echo file_get_contents('http://' . PHP_CLI_SERVER_ADDRESS . '/issue0149.phar.php');
 echo file_get_contents('http://' . PHP_CLI_SERVER_ADDRESS . '/issue0149.phar.php');