diff --git a/aegisub/src/auto4_lua_dialog.cpp b/aegisub/src/auto4_lua_dialog.cpp
index 853049cf2..a074e228d 100644
--- a/aegisub/src/auto4_lua_dialog.cpp
+++ b/aegisub/src/auto4_lua_dialog.cpp
@@ -516,15 +516,15 @@ namespace Automation4 {
 			return button;
 		};
 
-		if (boost::count(buttons | boost::adaptors::map_keys, -1) == 0) {
-			for (size_t i = 0; i < buttons.size(); ++i)
-				bs->AddButton(make_button(buttons[i].first, i, wxEmptyString));
+		bool only_wxID_buttons = true;
+		for (size_t i = 0; i < buttons.size(); ++i) {
+			bs->AddButton(make_button(buttons[i].first, i, buttons[i].second));
+			if (buttons[i].first == -1)
+				only_wxID_buttons = false;
+		}
+
+		if (only_wxID_buttons)
 			bs->Realize();
-		}
-		else {
-			for (size_t i = 0; i < buttons.size(); ++i)
-				bs->Add(make_button(buttons[i].first, i, buttons[i].second));
-		}
 
 		auto ms = new wxBoxSizer(wxVERTICAL);
 		ms->Add(s, 0, wxBOTTOM, 5);