diff --git a/examples/AppSwitcher/AppSwitcher.ino b/examples/AppSwitcher/AppSwitcher.ino
index d72feca0..a7a239a9 100644
--- a/examples/AppSwitcher/AppSwitcher.ino
+++ b/examples/AppSwitcher/AppSwitcher.ino
@@ -58,8 +58,9 @@ const macro_t *macroAction(uint8_t macroIndex, uint8_t keyState) {
 }
 
 void setup() {
-  Kaleidoscope.setup(KEYMAP_SIZE);
-  Kaleidoscope.use(&HostOS, &Macros, NULL);
+  USE_PLUGINS(&HostOS, &Macros);
+
+  Kaleidoscope.setup();
 }
 
 void loop() {
diff --git a/examples/AppSwitcher/Macros.cpp b/examples/AppSwitcher/Macros.cpp
index d60cfe4f..db543026 100644
--- a/examples/AppSwitcher/Macros.cpp
+++ b/examples/AppSwitcher/Macros.cpp
@@ -23,14 +23,14 @@
 
 #include "Macros.h"
 
-using namespace KaleidoscopePlugins::HostOS;
+namespace H = kaleidoscope::hostos;
 
 static bool appSwitchActive = false;
 
 const macro_t *macroAppSwitch(uint8_t keyState) {
   Key mod = Key_LeftAlt;
 
-  if (HostOS.os() == OSX)
+  if (HostOS.os() == H::OSX)
     mod = Key_LeftGui;
 
   // Key was just pressed, or is being held