diff --git a/bson/__init__.py b/bson/__init__.py
index 9a7440cd7..345768336 100644
--- a/bson/__init__.py
+++ b/bson/__init__.py
@@ -51,10 +51,10 @@ except ImportError:
 # This sort of sucks, but seems to be as good as it gets...
 RE_TYPE = type(re.compile(""))
 
-MAXBSONINT32 = 2147483647
-MINBSONINT32 = -2147483648
-MAXBSONINT64 = 9223372036854775807
-MINBSONINT64 = -9223372036854775808
+MAX_INT32 = 2147483647
+MIN_INT32 = -2147483648
+MAX_INT64 = 9223372036854775807
+MIN_INT64 = -9223372036854775808
 
 def _get_int(data, as_class=None, tz_aware=False, unsigned=False):
     format = unsigned and "I" or "i"
@@ -303,14 +303,14 @@ def _element_to_bson(key, value, check_keys):
         return "\x08" + name + "\x00"
     if isinstance(value, int):
         # TODO this is an ugly way to check for this...
-        if value > MAXBSONINT64 or value < MINBSONINT64:
+        if value > MAX_INT64 or value < MIN_INT64:
             raise OverflowError("BSON can only handle up to 8-byte ints")
-        if value > MAXBSONINT32 or value < MINBSONINT32:
+        if value > MAX_INT32 or value < MIN_INT32:
             return "\x12" + name + struct.pack("<q", value)
         return "\x10" + name + struct.pack("<i", value)
     if isinstance(value, long):
         # XXX No long type in Python 3
-        if value > MAXBSONINT64 or value < MINBSONINT64:
+        if value > MAX_INT64 or value < MIN_INT64:
             raise OverflowError("BSON can only handle up to 8-byte ints")
         return "\x12" + name + struct.pack("<q", value)
     if isinstance(value, datetime.datetime):