diff --git a/manual.xml b/manual.xml
index 0678298e2..c99566d5f 100644
--- a/manual.xml
+++ b/manual.xml
@@ -132,6 +132,7 @@
    &reference.errorfunc.book;
    &reference.ffi.book;
    &reference.opcache.book;
+   &reference.operator.book;
    &reference.outcontrol.book;
    &reference.info.book;
    &reference.phpdbg.book;