diff --git a/source/nRF5xGattServer.h b/source/nRF5xGattServer.h
index f606ff9..a2fd886 100644
--- a/source/nRF5xGattServer.h
+++ b/source/nRF5xGattServer.h
@@ -44,7 +44,7 @@ public:
 
 
 private:
-    const static unsigned BLE_TOTAL_CHARACTERISTICS = 20;
+    const static unsigned BLE_TOTAL_CHARACTERISTICS = 30;
     const static unsigned BLE_TOTAL_DESCRIPTORS     = 8;
 
 private: