diff --git a/indentxml.py b/indentxml.py
index f31637f..f1d6f57 100644
--- a/indentxml.py
+++ b/indentxml.py
@@ -88,12 +88,12 @@ def indent(self, s):
         # convert to plain string without indents and spaces
         s = re.compile(b'>\s+([^\s])', re.DOTALL).sub(b'>\g<1>', s)
         # replace tags to convince minidom process cdata as text
-        s = s.replace(b'<![CDATA[', b'%CDATAESTART%').replace(b']]>', b'%CDATAEEND%') 
+        s = s.replace(b'<![CDATA[', b'%CDATAESTART%').replace(b'&', b'&amp;').replace(b']]>', b'%CDATAEEND%') 
         s = parseString(s).toprettyxml()
         # remove line breaks
         s = re.compile('>\n\s+([^<>\s].*?)\n\s+</', re.DOTALL).sub('>\g<1></', s)
         # restore cdata
-        s = s.replace('%CDATAESTART%', '<![CDATA[').replace('%CDATAEEND%', ']]>')
+        s = s.replace('%CDATAESTART%', '<![CDATA[').replace(b'&amp;', b'&').replace('%CDATAEEND%', ']]>')
         # remove xml header
         s = s.replace("<?xml version=\"1.0\" ?>", "").strip()
         if xmlheader: