diff --git a/ext/ragel/base_lexer.rl b/ext/ragel/base_lexer.rl
index e9cedff..0b63efe 100644
--- a/ext/ragel/base_lexer.rl
+++ b/ext/ragel/base_lexer.rl
@@ -225,7 +225,7 @@
         '<' => start_element;
 
         # Regular closing tags.
-        '</' identifier '>' => {
+        '</' identifier (':' identifier)* '>' => {
             callback_simple("on_element_end");
         };
 
diff --git a/spec/oga/xml/lexer/elements_spec.rb b/spec/oga/xml/lexer/elements_spec.rb
index 19bb346..b6bb8fe 100644
--- a/spec/oga/xml/lexer/elements_spec.rb
+++ b/spec/oga/xml/lexer/elements_spec.rb
@@ -141,5 +141,14 @@ describe Oga::XML::Lexer do
         [:T_ELEM_END, nil, 1]
       ]
     end
+
+    example 'lex an element with a start and end namespace' do
+      lex('<foo:p></foo:p>').should == [
+        [:T_ELEM_START, nil, 1],
+        [:T_ELEM_NS, 'foo', 1],
+        [:T_ELEM_NAME, 'p', 1],
+        [:T_ELEM_END, nil, 1]
+      ]
+    end
   end
 end