diff --git a/Zend/tests/bug72594.phpt b/Zend/tests/bug72594.phpt
new file mode 100644
index 00000000000..3e88b2e6d67
--- /dev/null
+++ b/Zend/tests/bug72594.phpt
@@ -0,0 +1,33 @@
+--TEST--
+Bug #72594 (Calling an earlier instance of an included anonymous class fatals)
+--INI--
+opcache.enable=0
+--FILE--
+<?php
+if (isset($runtime)) {
+	return new class {
+		public $bar;
+		public function bing($foo = null) {
+			if ($foo) $foo->bing();
+		}
+	};
+}
+
+$runtime = 1;
+$oldFoo = require(__FILE__);
+$newFoo = require(__FILE__);
+
+var_dump(get_class_methods($oldFoo));
+var_dump(get_object_vars($oldFoo));
+
+$newFoo->bing($oldFoo);
+?>
+--EXPECTF--
+array(1) {
+  [0]=>
+  string(4) "bing"
+}
+array(1) {
+  ["bar"]=>
+  NULL
+}
diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
index c6eb087eddc..9a4ff33950b 100644
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -5931,7 +5931,15 @@ void zend_compile_class_decl(zend_ast *ast) /* {{{ */
 			opline->opcode = ZEND_DECLARE_ANON_CLASS;
 		}
 
-		zend_hash_update_ptr(CG(class_table), lcname, ce);
+		if (!zend_hash_exists(CG(class_table), lcname)) {
+			zend_hash_add_ptr(CG(class_table), lcname, ce);
+		} else {
+			/* this anonymous class has been included */
+			zval zv;
+			ZVAL_PTR(&zv, ce);
+			destroy_zend_class(&zv);
+			return;
+		}
 	} else {
 		zend_string *key;
 
@@ -6218,7 +6226,6 @@ void zend_compile_group_use(zend_ast *ast) /* {{{ */
 }
 /* }}} */
 
-
 void zend_compile_const_decl(zend_ast *ast) /* {{{ */
 {
 	zend_ast_list *list = zend_ast_get_list(ast);