diff --git a/plugins/builtin/source/plugin_builtin.cpp b/plugins/builtin/source/plugin_builtin.cpp
index c0c4faa2c..b20def4a7 100644
--- a/plugins/builtin/source/plugin_builtin.cpp
+++ b/plugins/builtin/source/plugin_builtin.cpp
@@ -24,6 +24,8 @@ namespace hex::plugin::builtin {
     void addToolbarItems();
     void addGlobalUIItems();
 
+    void handleBorderlessWindowMode();
+
     void registerLanguageEnUS();
     void registerLanguageDeDE();
     void registerLanguageItIT();
@@ -67,6 +69,8 @@ IMHEX_PLUGIN_SETUP("Built-in", "WerWolv", "Default ImHex functionality") {
 
     registerLayouts();
     registerMainMenuEntries();
+
+    handleBorderlessWindowMode();
 }
 
 // This is the default plugin