1 files changed, 6 insertions, 0 deletions
diff --git a/bs4/element.py b/bs4/element.py
index 872ebf6..9e2bfec 100644
--- a/bs4/element.py
+++ b/bs4/element.py
@@ -745,10 +745,16 @@ class CData(PreformattedString):
     SUFFIX = u']]>'
 
 class ProcessingInstruction(PreformattedString):
+    """A SGML processing instruction."""
 
     PREFIX = u'<?'
     SUFFIX = u'>'
 
+class XMLProcessingInstruction(ProcessingInstruction):
+    """An XML processing instruction."""
+    PREFIX = u'<?'
+    SUFFIX = u'?>'
+
 class Comment(PreformattedString):
 
     PREFIX = u'<!--'