diff --git a/src/node.cc b/src/node.cc
index 35db43a178..0c69ece87a 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -3871,6 +3871,8 @@ static void PrintHelp() {
          "NODE_PATH                    ':'-separated list of directories\n"
 #endif
          "                             prefixed to the module search path\n"
+         "NODE_PENDING_DEPRECATION     set to 1 to emit pending deprecation\n"
+         "                             warnings\n"
          "NODE_REPL_HISTORY            path to the persistent REPL history\n"
          "                             file\n"
          "NODE_REDIRECT_WARNINGS       write warnings to path instead of\n"