diff --git a/Lib/php/phpinit.swg b/Lib/php/phpinit.swg
index 40f7b0766..ae72a10ae 100644
--- a/Lib/php/phpinit.swg
+++ b/Lib/php/phpinit.swg
@@ -9,4 +9,8 @@
 SWIG_php_minit {
   zend_class_entry SWIGUNUSED internal_ce;
   SWIG_InitializeModule((void*)&module_number);
+#if PHP_MAJOR_VERSION == 8 && PHP_MINOR_VERSION == 0
+  /* This hack is needed to avoid segfaults. */
+  EG(class_table) = CG(class_table);
+#endif
 %}