diff --git a/src/ardrone_sdk.h b/src/ardrone_sdk.h
index 2eb7949..c78cd8f 100644
--- a/src/ardrone_sdk.h
+++ b/src/ardrone_sdk.h
@@ -15,8 +15,13 @@
 #if defined __cplusplus
 #    define __STDC_CONSTANT_MACROS
 #endif
+
 #include <stdint.h>
 
+#ifndef UINT64_C
+#define UINT64_C(c) (c ## ULL)
+#endif
+
 extern "C" {
 
 #include <config.h>