diff --git a/src/modbus.h b/src/modbus.h
index 26ed05b..6ec0b50 100644
--- a/src/modbus.h
+++ b/src/modbus.h
@@ -193,9 +193,9 @@ uint8_t modbus_get_byte_from_bits(const uint8_t *src, int address, unsigned int 
 float modbus_get_float(const uint16_t *src);
 void modbus_set_float(float real, uint16_t *dest);
 
-MODBUS_END_DECLS
-
 #include "modbus-tcp.h"
 #include "modbus-rtu.h"
 
+MODBUS_END_DECLS
+
 #endif  /* _MODBUS_H_ */