diff --git a/dbfread/field_parser.py b/dbfread/field_parser.py
index b462a2d..cd55ccd 100644
--- a/dbfread/field_parser.py
+++ b/dbfread/field_parser.py
@@ -176,7 +176,7 @@ def parseN(self, field, data):
 
     def parseO(self, field, data):
         """Parse long field (O) and return float."""
-        return struct.unpack('d', data)[0]
+        return struct.unpack('<d', data)[0]
 
     def parseT(self, field, data):
         """Parse time field (T)