diff --git a/src/util/ByteUtil.h b/src/util/ByteUtil.h
index 1a45e5c..bc4c0ee 100644
--- a/src/util/ByteUtil.h
+++ b/src/util/ByteUtil.h
@@ -27,4 +27,7 @@ namespace Feather
     inline int16_t ReverseBytes(int16_t n) { return int16_t(ReverseBytes(uint16_t(n))); }
     inline int32_t ReverseBytes(int32_t n) { return int32_t(ReverseBytes(uint32_t(n))); }
     inline int64_t ReverseBytes(int64_t n) { return int64_t(ReverseBytes(uint64_t(n))); }
+
+    // FIXME: this maybe very wrong
+    inline double ReverseBytes(double d) { return (double)ReverseBytes((uint64_t)d); }
 }
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