diff --git a/src/globals/defines.php b/src/globals/defines.php
index b1868756..bcd59a16 100644
--- a/src/globals/defines.php
+++ b/src/globals/defines.php
@@ -43,6 +43,7 @@ const SPC_INTERNAL_EXTENSIONS = [
     'core',
     'hash',
     'json',
+    'pcre',
     'reflection',
     'spl',
     'standard',