diff --git a/src/NimBLEServer.h b/src/NimBLEServer.h
index 5054b84..605445a 100644
--- a/src/NimBLEServer.h
+++ b/src/NimBLEServer.h
@@ -21,6 +21,8 @@
 #define NIMBLE_ATT_REMOVE_HIDE 1
 #define NIMBLE_ATT_REMOVE_DELETE 2
 
+#define onMtuChanged onMTUChange
+
 #include "NimBLEUtils.h"
 #include "NimBLEAddress.h"
 #include "NimBLEAdvertising.h"