Fixed typo: amalga*ma*te. Replaced macro JSON_IS_AMALGATED with JSON_IS_AMALGAMATION
diff --git a/include/json/features.h b/include/json/features.h
index 0b53db1..4353278 100644
--- a/include/json/features.h
+++ b/include/json/features.h
@@ -6,9 +6,9 @@
#ifndef CPPTL_JSON_FEATURES_H_INCLUDED
# define CPPTL_JSON_FEATURES_H_INCLUDED
-#if !defined(JSON_IS_AMALGATED)
+#if !defined(JSON_IS_AMALGAMATION)
# include "forwards.h"
-#endif // if !defined(JSON_IS_AMALGATED)
+#endif // if !defined(JSON_IS_AMALGAMATION)
namespace Json {