diff --git a/lib/jsonpath.rb b/lib/jsonpath.rb
index 914b44f..0bd509d 100644
--- a/lib/jsonpath.rb
+++ b/lib/jsonpath.rb
@@ -32,7 +32,7 @@ def initialize(path, opts = {})
     until scanner.eos?
       if (token = scanner.scan(/\$\B|@\B|\*|\.\./))
         @path << token
-      elsif (token = scanner.scan(/[$@a-zA-Z0-9:{}_-]+/))
+      elsif (token = scanner.scan(/[$@\p{Alnum}:{}_ -]+/))
         @path << "['#{token}']"
       elsif (token = scanner.scan(/'(.*?)'/))
         @path << "[#{token}]"
@@ -87,7 +87,7 @@ def on(obj_or_str, opts = {})
     end
     a
   end
-  
+
   def self.fetch_all_path(obj)
     all_paths = ['$']
     find_path(obj, '$', all_paths, obj.class == Array)
diff --git a/test/test_jsonpath.rb b/test/test_jsonpath.rb
index 6bae8e7..5ab02d7 100644
--- a/test/test_jsonpath.rb
+++ b/test/test_jsonpath.rb
@@ -245,7 +245,7 @@ def test_use_first
   end
 
   def test_counting
-    assert_equal 57, JsonPath.new('$..*').on(@object).to_a.size
+    assert_equal 59, JsonPath.new('$..*').on(@object).to_a.size
   end
 
   def test_space_in_path
@@ -475,6 +475,16 @@ def test_support_underscore_in_member_names
                  JsonPath.new('$.store._links').on(@object)
   end
 
+  def test_support_for_umlauts_in_member_names
+    assert_equal [@object['store']['Übermorgen']],
+                 JsonPath.new('$.store.Übermorgen').on(@object)
+  end
+
+  def test_support_for_spaces_in_member_name
+    assert_equal [@object['store']['Title Case']],
+                 JsonPath.new('$.store.Title Case').on(@object)
+  end
+
   def test_dig_return_string
     assert_equal ['asdf'], JsonPath.new("$.store.book..tags[?(@ == 'asdf')]").on(@object)
     assert_equal [], JsonPath.new("$.store.book..tags[?(@ == 'not_asdf')]").on(@object)
@@ -1275,10 +1285,12 @@ def example_object
       },
       '@id' => 'http://example.org/store/42',
       '$meta-data' => 'whatevs',
+      'Übermorgen' => 'The day after tomorrow',
+      'Title Case' => 'A title case string',
       '_links' => { 'self' => {} }
     } }
   end
-  
+
   def test_fetch_all_path
     data = {
       "foo" => nil,