diff --git a/spec/json-xpath_spec.cr b/spec/json-xpath_spec.cr
index 052d633..30976af 100644
--- a/spec/json-xpath_spec.cr
+++ b/spec/json-xpath_spec.cr
@@ -17,7 +17,8 @@ module JSONXPath
       s = %({
     		"name":"John",
 		    "age":31,
-		    "city":"New York"
+		    "city":"New York",
+				"zip": null
         })
       doc = Node.parse(s)
       m = Hash(String, String).new
@@ -29,6 +30,7 @@ module JSONXPath
         "name" => "John",
         "age"  => "31",
         "city" => "New York",
+        "zip"  => ""
       }
 
       m.should eq(expected)
@@ -38,11 +40,12 @@ module JSONXPath
       s = %([
         { "name":"Ford", "models":[ "Fiesta", "Focus", "Mustang" ] },
         { "name":"BMW", "models":[ "320", "X3", "X5" ] },
-            { "name":"Fiat", "models":[ "500", "Panda" ] }
+        { "name":"Fiat", "models":[ "500", "Panda" ] },
+        null
       ])
 
       doc = Node.parse(s)
-      doc.children.size.should eq(3)
+      doc.children.size.should eq(4)
 
       m = Hash(String, Array(String)).new
       doc.children.each do |n|
@@ -62,7 +65,8 @@ module JSONXPath
 
       expected = {"Ford" => ["Fiesta", "Focus", "Mustang"],
                   "BMW"  => ["320", "X3", "X5"],
-                  "Fiat" => ["500", "Panda"]}
+                  "Fiat" => ["500", "Panda"],
+                  ""     => [] of String}
 
       m.should eq(expected)
     end
diff --git a/src/node.cr b/src/node.cr
index 1da7360..7ae5526 100644
--- a/src/node.cr
+++ b/src/node.cr
@@ -53,7 +53,7 @@ module JSONXPath
       when String
         n = Node.new(NodeType::Text, level, json.as_s, json)
         add_node(n, node)
-      when Float, Bool, Int
+      when Float, Bool, Int, Nil
         n = Node.new(NodeType::Text, level, json.to_s, json)
         add_node(n, node)
       else