diff --git a/src/openrct2/editor.c b/src/openrct2/editor.c
index 4f61bbb0bd..41782aba3e 100644
--- a/src/openrct2/editor.c
+++ b/src/openrct2/editor.c
@@ -694,7 +694,12 @@ void game_command_edit_scenario_options(sint32* eax, sint32* ebx, sint32* ecx, s
 			}
 			break;
 		case EDIT_SCENARIOOPTIONS_SETGUESTGENERATIONHIGHERDIFFICULTLEVEL:
-			
+			if (*edx != FALSE) {
+				gParkFlags |= PARK_FLAGS_DIFFICULT_GUEST_GENERATION;
+			}
+			else {
+				gParkFlags &= ~PARK_FLAGS_DIFFICULT_GUEST_GENERATION;
+			}
 			break;
 		}
 		window_invalidate_by_class(WC_EDITOR_SCENARIO_OPTIONS);
diff --git a/src/openrct2/windows/editor_scenario_options.c b/src/openrct2/windows/editor_scenario_options.c
index cf6b63b57c..988c8d534f 100644
--- a/src/openrct2/windows/editor_scenario_options.c
+++ b/src/openrct2/windows/editor_scenario_options.c
@@ -1191,7 +1191,15 @@ static void window_editor_scenario_options_park_mouseup(rct_window *w, sint32 wi
 		window_invalidate(w);
 		break;
 	case WIDX_HARD_GUEST_GENERATION:
-		gParkFlags ^= PARK_FLAGS_DIFFICULT_GUEST_GENERATION;
+		game_do_command(
+			0,
+			GAME_COMMAND_FLAG_APPLY,
+			EDIT_SCENARIOOPTIONS_SETGUESTGENERATIONHIGHERDIFFICULTLEVEL,
+			gParkFlags & PARK_FLAGS_DIFFICULT_GUEST_GENERATION ? FALSE : TRUE,
+			GAME_COMMAND_EDIT_SCENARIO_OPTIONS,
+			0,
+			0
+		);
 		window_invalidate(w);
 		break;
 	}