diff --git a/lib/nori.rb b/lib/nori.rb
index ba55215..2d70e6c 100644
--- a/lib/nori.rb
+++ b/lib/nori.rb
@@ -3,6 +3,7 @@
 require "nori/xml_utility_node"
 
 class Nori
+  class ParseError < StandardError; end
 
   def self.hash_key(name, options = {})
     name = name.tr("-", "_") if options[:convert_dashes_to_underscores]
diff --git a/lib/nori/parser/nokogiri.rb b/lib/nori/parser/nokogiri.rb
index af45ecb..533de70 100644
--- a/lib/nori/parser/nokogiri.rb
+++ b/lib/nori/parser/nokogiri.rb
@@ -10,6 +10,7 @@ module Nokogiri
 
       class Document < ::Nokogiri::XML::SAX::Document
         attr_accessor :options
+        attr_accessor :last_error
 
         def stack
           @stack ||= []
@@ -44,6 +45,9 @@ def characters(string)
 
         alias cdata_block characters
 
+        def error(message)
+          @last_error = message
+        end
       end
 
       def self.parse(xml, options)
@@ -51,6 +55,7 @@ def self.parse(xml, options)
         document.options = options
         parser = ::Nokogiri::XML::SAX::Parser.new document
         parser.parse xml
+        raise ParseError, document.last_error if document.last_error
         document.stack.length > 0 ? document.stack.pop.to_hash : {}
       end
 
diff --git a/lib/nori/parser/rexml.rb b/lib/nori/parser/rexml.rb
index 0cada7f..efc1fe6 100644
--- a/lib/nori/parser/rexml.rb
+++ b/lib/nori/parser/rexml.rb
@@ -15,7 +15,11 @@ def self.parse(xml, options)
         parser = ::REXML::Parsers::BaseParser.new(xml)
 
         while true
-          raw_data = parser.pull
+          begin
+            raw_data = parser.pull
+          rescue ::REXML::ParseException => error
+            raise Nori::ParseError, error.message
+          end
           event = unnormalize(raw_data)
           case event[0]
           when :end_document
diff --git a/spec/nori/nori_spec.rb b/spec/nori/nori_spec.rb
index e673722..d11a6f4 100644
--- a/spec/nori/nori_spec.rb
+++ b/spec/nori/nori_spec.rb
@@ -640,6 +640,10 @@
         expect(parse(' ')).to eq({})
       end
 
+      it "raises error on missing end tag" do
+        expect { parse('<foo><bar>foo bar</foo>') }.to raise_error(Nori::ParseError)
+      end
+
     end
   end