diff --git a/include/boost/endian/types.hpp b/include/boost/endian/types.hpp
index 9a81795..0298258 100644
--- a/include/boost/endian/types.hpp
+++ b/include/boost/endian/types.hpp
@@ -194,6 +194,9 @@ namespace endian
   typedef big_uint56_t  native_uint56_t;
   typedef big_uint64_t  native_uint64_t;
 
+  // unaligned native endian floating point types
+  typedef big_float32_t native_float32_t;
+  typedef big_float64_t native_float64_t;
 # else
   // unaligned native endian signed integer types
   typedef little_int8_t   native_int8_t;
@@ -214,6 +217,10 @@ namespace endian
   typedef little_uint48_t  native_uint48_t;
   typedef little_uint56_t  native_uint56_t;
   typedef little_uint64_t  native_uint64_t;
+
+  // unaligned native endian floating point types
+  typedef little_float32_t native_float32_t;
+  typedef little_float64_t native_float64_t;
 # endif
 }  // namespace boost
 }  // namespace endian