diff --git a/distribution/openrct2.d.ts b/distribution/openrct2.d.ts
index 2093d931bd..bf3058ba13 100644
--- a/distribution/openrct2.d.ts
+++ b/distribution/openrct2.d.ts
@@ -326,7 +326,7 @@ export interface Park {
  * Represents the type of a widget, e.g. button or label.
  */
 export type WidgetType =
-    "button" | "dropdown" | "label" | "tabview" | "viewport";
+    "button" | "dropdown" | "groupbox" | "label" | "tabview" | "viewport";
 
 export interface Widget {
     type: WidgetType;
diff --git a/src/openrct2-ui/interface/Widget.cpp b/src/openrct2-ui/interface/Widget.cpp
index 7f4072b40f..78f2d7311e 100644
--- a/src/openrct2-ui/interface/Widget.cpp
+++ b/src/openrct2-ui/interface/Widget.cpp
@@ -455,7 +455,22 @@ static void widget_groupbox_draw(rct_drawpixelinfo* dpi, rct_window* w, rct_widg
     int32_t textRight = l;
 
     // Text
-    if (widget->text != STR_NONE)
+    auto stringId = widget->text;
+    void* formatArgs = gCommonFormatArgs;
+    if (widget->flags & WIDGET_FLAGS::TEXT_IS_STRING)
+    {
+        if (widget->string == nullptr || widget->string[0] == '\0')
+        {
+            stringId = STR_NONE;
+            formatArgs = nullptr;
+        }
+        else
+        {
+            stringId = STR_STRING;
+            formatArgs = &widget->string;
+        }
+    }
+    if (stringId != STR_NONE)
     {
         uint8_t colour = w->colours[widget->colour] & 0x7F;
         if (widget_is_disabled(w, widgetIndex))
@@ -463,7 +478,7 @@ static void widget_groupbox_draw(rct_drawpixelinfo* dpi, rct_window* w, rct_widg
 
         utf8 buffer[512] = { 0 };
         uint8_t args[sizeof(uintptr_t)] = { 0 };
-        format_string(buffer, sizeof(buffer), widget->text, gCommonFormatArgs);
+        format_string(buffer, sizeof(buffer), stringId, formatArgs);
         Formatter(args).Add<utf8*>(buffer);
         gfx_draw_string_left(dpi, STR_STRING, args, colour, l, t);
         textRight = l + gfx_get_string_width(buffer) + 1;
diff --git a/src/openrct2-ui/scripting/CustomWindow.cpp b/src/openrct2-ui/scripting/CustomWindow.cpp
index a5d02962a0..80834e61cb 100644
--- a/src/openrct2-ui/scripting/CustomWindow.cpp
+++ b/src/openrct2-ui/scripting/CustomWindow.cpp
@@ -137,7 +137,7 @@ namespace OpenRCT2::Ui::Windows
                 result.SelectedIndex = desc["selectedIndex"].as_int();
                 result.OnChange = desc["onChange"];
             }
-            else if (result.Type == "label")
+            else if (result.Type == "groupbox" || result.Type == "label")
             {
                 result.Text = ProcessString(desc["text"].as_string());
             }
@@ -460,6 +460,13 @@ namespace OpenRCT2::Ui::Windows
             widget.flags |= WIDGET_FLAGS::IS_ENABLED;
             widgetList.push_back(widget);
         }
+        else if (desc.Type == "groupbox")
+        {
+            widget.type = WWT_GROUPBOX;
+            widget.string = (utf8*)desc.Text.c_str();
+            widget.flags |= WIDGET_FLAGS::TEXT_IS_STRING;
+            widgetList.push_back(widget);
+        }
         else if (desc.Type == "label")
         {
             widget.type = WWT_LABEL;