diff --git a/README.md b/README.md
index 5577aa4..030bf96 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,11 @@ $ kokki japan
 🇯🇵
 $ kokki 202.214.194.147
 🇯🇵
+# it suports a defanged ip as an input
+$ kokki 1.1.1[.]1
+🇦🇺
+$ kokki "1.1.1(.)1"
+🇦🇺
 ```
 
 ### As a library
diff --git a/lib/kokki/converter.rb b/lib/kokki/converter.rb
index b95361d..2e5039b 100644
--- a/lib/kokki/converter.rb
+++ b/lib/kokki/converter.rb
@@ -36,8 +36,12 @@ def self.convert(input)
 
     private
 
+    def refang(input)
+      input.gsub("[.]", ".").gsub("(.)", ".")
+    end
+
     def convert_as_ip_address(ip_address)
-      ip = IPAddress.new(ip_address)
+      ip = IPAddress.new(refang(ip_address))
       dict.lookup_by_alpha_2_code ip.country_code
     end
   end
diff --git a/spec/converter_spec.rb b/spec/converter_spec.rb
index db1b140..efee1cb 100644
--- a/spec/converter_spec.rb
+++ b/spec/converter_spec.rb
@@ -41,6 +41,13 @@
       end
     end
 
+    context "when given a defanged ip address" do
+      it do
+        flag = subject.convert("1[.]0[.]16[.]0")
+        expect(flag).to eq("🇯🇵")
+      end
+    end
+
     context "when given an invalid input" do
       it "raises an InvalidError" do
         expect { subject.convert("test") }.to raise_error(Kokki::InvalidInputError)
diff --git a/spec/fixtures/vcr_cassettes/Kokki_Converter/_convert/when_given_a_defanged_ip_address/1_1_5_1.yml b/spec/fixtures/vcr_cassettes/Kokki_Converter/_convert/when_given_a_defanged_ip_address/1_1_5_1.yml
new file mode 100644
index 0000000..e6189a2
--- /dev/null
+++ b/spec/fixtures/vcr_cassettes/Kokki_Converter/_convert/when_given_a_defanged_ip_address/1_1_5_1.yml
@@ -0,0 +1,56 @@
+---
+http_interactions:
+- request:
+    method: get
+    uri: https://ipinfo.io/1.0.16.0/geo
+    body:
+      encoding: US-ASCII
+      string: ''
+    headers:
+      Accept-Encoding:
+      - gzip;q=1.0,deflate;q=0.6,identity;q=0.3
+      Accept:
+      - "*/*"
+      User-Agent:
+      - Ruby
+      Host:
+      - ipinfo.io
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Sat, 28 Sep 2019 11:15:53 GMT
+      Content-Type:
+      - application/json; charset=utf-8
+      Vary:
+      - Accept-Encoding
+      Access-Control-Allow-Origin:
+      - "*"
+      X-Frame-Options:
+      - DENY
+      X-Xss-Protection:
+      - 1; mode=block
+      X-Content-Type-Options:
+      - nosniff
+      Referrer-Policy:
+      - strict-origin-when-cross-origin
+      Via:
+      - 1.1 google
+      Transfer-Encoding:
+      - chunked
+    body:
+      encoding: ASCII-8BIT
+      string: |-
+        {
+          "ip": "1.0.16.0",
+          "city": "",
+          "region": "",
+          "country": "JP",
+          "loc": "35.6900,139.6900",
+          "readme": "https://ipinfo.io/missingauth"
+        }
+    http_version: 
+  recorded_at: Sat, 28 Sep 2019 11:15:51 GMT
+recorded_with: VCR 5.0.0