diff --git a/ani/ani.h b/ani/ani.h
index 58b27279a17390b87cdf0f122201941d5a27c9e5..9af72af79eab6bb115eae2480220a7f3306a513c 100644
--- a/ani/ani.h
+++ b/ani/ani.h
@@ -19,7 +19,7 @@
 
 #ifdef __cplusplus
 #include <cstdarg>
-#include <cstddef>
+#include <cstddef>  
 #include <cstdint>
 #else
 #include <stdarg.h>