diff --git a/passes/opt/rmports.cc b/passes/opt/rmports.cc
index 9fa9f5c2d..0ac391790 100644
--- a/passes/opt/rmports.cc
+++ b/passes/opt/rmports.cc
@@ -17,17 +17,20 @@
  *
  */
 
-#include "kernel/register.h"
 #include "kernel/sigtools.h"
-#include "kernel/log.h"
-#include <stdlib.h>
-#include <stdio.h>
+#include "kernel/yosys.h"
+#include "kernel/log_help.h"
 
 USING_YOSYS_NAMESPACE
 PRIVATE_NAMESPACE_BEGIN
 
 struct RmportsPassPass : public Pass {
 	RmportsPassPass() : Pass("rmports", "remove module ports with no connections") { }
+	bool formatted_help() override {
+		auto *help = PrettyHelp::get_current();
+		help->set_group("techlibs/greenpak4");
+		return false;
+	}
 	void help() override
 	{
 		//   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|