diff --git a/compiler/cpp/src/generate/t_php_generator.cc b/compiler/cpp/src/generate/t_php_generator.cc
index e2e4e9f..1eb759c 100644
--- a/compiler/cpp/src/generate/t_php_generator.cc
+++ b/compiler/cpp/src/generate/t_php_generator.cc
@@ -2576,5 +2576,6 @@
 "    server:          Generate PHP server stubs\n"
 "    oop:             Generate PHP with object oriented subclasses\n"
 "    rest:            Generate PHP REST processors\n"
+"    nsglobal=NAME:   Set global namespace\n"
 )