diff --git a/src/globals/test-extensions.php b/src/globals/test-extensions.php
index ef3d0cc1..2739d3ac 100644
--- a/src/globals/test-extensions.php
+++ b/src/globals/test-extensions.php
@@ -45,7 +45,7 @@ $prefer_pre_built = false;
 
 // If you want to test your added extensions and libs, add below (comma separated, example `bcmath,openssl`).
 $extensions = match (PHP_OS_FAMILY) {
-    'Linux', 'Darwin' => 'xsl,simplexml,xslwriter',
+    'Linux', 'Darwin' => 'xsl,simplexml,xlswriter',
     'Windows' => 'xlswriter,openssl',
 };