diff --git a/native/factor.h b/native/factor.h
index 6b32cf22b5..f8c76f929a 100644
--- a/native/factor.h
+++ b/native/factor.h
@@ -62,6 +62,15 @@ CELL cs_bot;
 #include <string.h>
 #include <time.h>
 
+typedef unsigned char uint8_t; 	 
+typedef unsigned short uint16_t; 	 
+typedef unsigned int uint32_t; 	 
+typedef unsigned long long uint64_t; 	 
+typedef signed char int8_t; 	 
+typedef signed short int16_t; 	 
+typedef signed int int32_t; 	 
+typedef signed long long int64_t;
+
 #ifdef WIN32
 	#include <windows.h>