diff --git a/sdk/include/rplidar.h b/sdk/include/rplidar.h
index 2f7de3d..c4f4752 100644
--- a/sdk/include/rplidar.h
+++ b/sdk/include/rplidar.h
@@ -41,4 +41,5 @@
 
 #include "rplidar_driver.h"
 
+#define RPLIDAR_SDK_VERSION "2.0.0"
 #define SLAMTEC_LIDAR_SDK_VERSION  SL_LIDAR_SDK_VERSION