diff --git a/shard.yml b/shard.yml
index 686768b..0aff9de 100644
--- a/shard.yml
+++ b/shard.yml
@@ -1,5 +1,5 @@
 name: kemal
-version: 0.5.0
+version: 0.6.0
 
 author:
   - Serdar Dogruyol <dogruyolserdar@gmail.com>
diff --git a/spec/config_spec.cr b/spec/config_spec.cr
index d4332f9..f9a5f5b 100644
--- a/spec/config_spec.cr
+++ b/spec/config_spec.cr
@@ -17,12 +17,18 @@ describe "Config" do
     config.env.should eq "development"
   end
 
-  it "set environment to production" do
+  it "sets environment to production" do
     config = Kemal.config
     config.env = "production"
     config.env.should eq "production"
   end
 
+  it "sets host binding" do
+    config = Kemal.config
+    config.host_binding = "127.0.0.1"
+    config.host_binding.should eq "127.0.0.1"
+  end
+
   it "adds a custom handler" do
     config = Kemal.config
     config.add_handler CustomTestHandler.new
diff --git a/spec/logger_spec.cr b/spec/logger_spec.cr
index 82e59d1..e450c97 100644
--- a/spec/logger_spec.cr
+++ b/spec/logger_spec.cr
@@ -18,7 +18,6 @@ describe "Logger" do
     logger = Kemal::Logger.new
     logger.handler.should be_a File
   end
-  
   it "writes to a file in production" do
     config = Kemal.config
     config.env = "production"
diff --git a/src/kemal.cr b/src/kemal.cr
index 4a6d6c8..9d2638e 100644
--- a/src/kemal.cr
+++ b/src/kemal.cr
@@ -10,6 +10,9 @@ at_exit do
     opts.on("-e ", "--environment ", "environment") do |env|
       Kemal.config.env = env
     end
+    opts.on("-b", "--bind", "host binding") do |host_binding|
+      Kemal.config.host_binding = host_binding
+    end
   end
 
   config = Kemal.config
@@ -18,9 +21,9 @@ at_exit do
   config.add_handler Kemal::StaticFileHandler.new(config.public_folder)
   config.add_handler Kemal::Handler::INSTANCE
 
-  server = HTTP::Server.new("0.0.0.0", config.port, config.handlers)
+  server = HTTP::Server.new(config.host_binding.not_nil!.to_slice, config.port, config.handlers)
   server.ssl = config.ssl
-  logger.write "[#{config.env}] Kemal is ready to lead at #{config.scheme}://0.0.0.0:#{config.port}\n"
+  logger.write "[#{config.env}] Kemal is ready to lead at #{config.scheme}://#{config.host_binding}:#{config.port}\n"
 
   Signal::INT.trap {
     logger.write "Kemal is going to take a rest!\n"
diff --git a/src/kemal/config.cr b/src/kemal/config.cr
index 1da0e65..0e9afec 100644
--- a/src/kemal/config.cr
+++ b/src/kemal/config.cr
@@ -4,9 +4,10 @@ module Kemal
   class Config
     INSTANCE = Config.new
     HANDLERS = [] of HTTP::Handler
-    property ssl, port, env, public_folder
+    property host_binding, ssl, port, env, public_folder
 
     def initialize
+      @host_binding = "0.0.0.0" unless @host_binding
       @port = 3000
       @env = "development" unless @env
       @public_folder = "./public"