diff --git a/include/r3_define.h b/include/r3_define.h
index 3176cff..6951b4d 100644
--- a/include/r3_define.h
+++ b/include/r3_define.h
@@ -23,7 +23,7 @@ typedef unsigned char bool;
 #ifdef DEBUG
 
 #define info(fmt, ...) \
-            do { fprintf(stderr, fmt, __VA_ARGS__); } while (0)
+            do { fprintf(stderr, fmt, ##__VA_ARGS__); } while (0)
 
 #define debug(fmt, ...) \
         do { fprintf(stderr, "%s:%d:%s(): " fmt, __FILE__, \