diff --git a/src/kaleidoscope/layers.cpp b/src/kaleidoscope/layers.cpp
index a5d47722..0f9b492a 100644
--- a/src/kaleidoscope/layers.cpp
+++ b/src/kaleidoscope/layers.cpp
@@ -152,18 +152,6 @@ Key Layer_::getKeyFromPROGMEM(uint8_t layer, KeyAddr key_addr) {
   return keyFromKeymap(layer, key_addr);
 }
 
-// Deprecated
-void Layer_::updateLiveCompositeKeymap(KeyAddr key_addr) {
-  // We could update the active keys cache here (as commented below), but I
-  // think that's unlikely to serve whatever purpose the caller had in
-  // mind. `Layer.lookup()` will still give the correct result, and without a
-  // `Key` value is specified, this function no longer serves a purpose.
-
-  // #include "kaleidoscope/LiveKeys.h"
-  // int8_t layer = active_layer_keymap_[key_addr.toInt()];
-  // live_keys.activate(key_addr, (*getKey)(layer, key_addr));
-}
-
 void Layer_::updateActiveLayers(void) {
   // First, set every entry in the active layer keymap to point to the default
   // layer (layer 0).
diff --git a/src/kaleidoscope/layers.h b/src/kaleidoscope/layers.h
index f5401b71..0aa995a1 100644
--- a/src/kaleidoscope/layers.h
+++ b/src/kaleidoscope/layers.h
@@ -81,6 +81,7 @@ class Layer_ {
   // The `Runtime.lookupKey()` function replaces this one, for plugins that
   // still want to do this same check.
 
+#ifndef NDEPRECATED
   DEPRECATED(LAYER_LOOKUP)
   static Key lookup(KeyAddr key_addr) {
     // First check the keyboard state array
@@ -91,6 +92,8 @@ class Layer_ {
     }
     return key;
   }
+#endif
+
   static Key lookupOnActiveLayer(KeyAddr key_addr) {
     uint8_t layer = active_layer_keymap_[key_addr.toInt()];
     return (*getKey)(layer, key_addr);
@@ -125,12 +128,15 @@ class Layer_ {
 
   static Key getKeyFromPROGMEM(uint8_t layer, KeyAddr key_addr);
 
+#ifndef NDEPRECATED
   DEPRECATED(LAYER_UPDATELIVECOMPOSITEKEYMAP)
   static void updateLiveCompositeKeymap(KeyAddr key_addr, Key mappedKey) {
     live_keys.activate(key_addr, mappedKey);
   }
   DEPRECATED(LAYER_UPDATELIVECOMPOSITEKEYMAP)
-  static void updateLiveCompositeKeymap(KeyAddr key_addr);
+  static void updateLiveCompositeKeymap(KeyAddr key_addr) {}
+#endif
+
   static void updateActiveLayers(void);
 
  private: