diff --git a/src/Kaleidoscope/MagicCombo.h b/src/Kaleidoscope/MagicCombo.h
index 902fe84e..958f7695 100644
--- a/src/Kaleidoscope/MagicCombo.h
+++ b/src/Kaleidoscope/MagicCombo.h
@@ -31,13 +31,6 @@
   }                                                                       \
   }
 
-#define _MAGICCOMBO_API_CHANGE                                            \
-  "The MagicCombo API changed in an incompatible way, you will need to\n" \
-  "upgrade.\n"                                                            \
-  "\n"                                                                    \
-  "Please see the `UPGRADING.md` document shipped with the source:\n"     \
-  " https://github.com/keyboardio/Kaleidoscope-MagicCombo/blob/master/UPGRADING.md"
-
 namespace kaleidoscope {
 
 class MagicCombo : public kaleidoscope::Plugin {
@@ -50,10 +43,8 @@ class MagicCombo : public kaleidoscope::Plugin {
   typedef struct combo_t {
     uint32_t left_hand, right_hand;
 
-    combo_t& operator=(combo_t &) {
-      static_assert(false, _DEPRECATE(_MAGICCOMBO_API_CHANGE));
-      return *this;
-    }
+   private:
+    combo_t(byte left, byte right) {}
   } combo_t;
 
   MagicCombo(void) {}