diff --git a/build/gen_stub.php b/build/gen_stub.php
index ff86106e8a2a..7d94e885b6ab 100755
--- a/build/gen_stub.php
+++ b/build/gen_stub.php
@@ -4535,7 +4535,7 @@ public function getVariableName(): string {
 
         if ($this->name === "param") {
             // Allow for parsing extended types like callable(string):mixed in docblocks
-            preg_match('/^\s*(?<type>[\w\|\\\\]+(?<parens>\((?<inparens>(?:(?&parens)|[^(){}[\]]*+))++\)|\{(?&inparens)\}|\[(?&inparens)\])*+(?::(?&type))?)\s*\$(?<name>\w+).*$/', $value, $matches);
+            preg_match('/^\s*(?<type>[\w\|\\\\]+(?<parens>\((?<inparens>(?:(?&parens)|[^(){}[\]<>]*+))++\)|\{(?&inparens)\}|\[(?&inparens)\]|<(?&inparens)>)*+(?::(?&type))?)\s*\$(?<name>\w+).*$/', $value, $matches);
         } elseif ($this->name === "prefer-ref") {
             preg_match('/^\s*\$(?<name>\w+).*$/', $value, $matches);
         }