diff --git a/mcp_can.h b/mcp_can.h
index a81f0a7..3052b8a 100644
--- a/mcp_can.h
+++ b/mcp_can.h
@@ -2,6 +2,9 @@
 #define _MCP_CAN_H_
 
 #include "mcp2515_can_dfs.h"
+#include "mcp2518fd_can_dfs.h"
+#include "mcp2518fd_can_def.h"
+
 #define MAX_CHAR_IN_MESSAGE 8
 
 #define spi_readwrite      pSPI->transfer