diff --git a/filter2.py b/filter2.py
index e696373..1406775 100644
--- a/filter2.py
+++ b/filter2.py
@@ -21,7 +21,7 @@ def prioritize(l):
 	if not isinstance(l, list):
 		return l
 	l=simplify(l)
-	for c in ['!=', '=', '&', '|']:
+	for c in ['!=', '<', '>', '=', '&', '|']:
 		i=0
 		while i<len(l):
 			if l[i] == c:
@@ -51,6 +51,10 @@ def toldapfilter(l):
 	op=l[0]
 	if op == "=":
 		return "%s=%s" % (l[1], l[2])
+	elif op == "<":
+		return "!(%s>=%s)" % (l[1], l[2])
+	elif op == ">":
+		return "!(%s<=%s)" % (l[1], l[2])
 	elif op == "!=":
 		return "!(%s=%s)" % (l[1], l[2])
 	return op + ''.join(['(%s)' % toldapfilter(i) for i in l[1:]])
@@ -63,8 +67,8 @@ def pypexpr():
     if not expr:
         import pyparsing
         unicodePrintables = u''.join(unichr(c) for c in xrange(65536) if not unichr(c).isspace())
-        txt = "".join(c for c in unicodePrintables if c not in '()&|!=')
-        expr = pyparsing.nestedExpr("(", ")", pyparsing.Word(txt) | pyparsing.oneOf("& | != ="))
+        txt = "".join(c for c in unicodePrintables if c not in '()&|<>!=')
+        expr = pyparsing.nestedExpr("(", ")", pyparsing.Word(txt) | pyparsing.oneOf("& | < > != ="))
     return expr
 	
 def human_to_list(data):