diff --git a/auth/auth.go b/auth/auth.go
index 6606007..71d9059 100644
--- a/auth/auth.go
+++ b/auth/auth.go
@@ -9,6 +9,9 @@ import (
 	"github.com/ivanilves/lstags/auth/bearer"
 )
 
+// WebSchema defines how do we connect to remote web servers
+var WebSchema = "https://"
+
 // TokenResponse is an abstraction for aggregated token-related information we get from authentication services
 type TokenResponse interface {
 	Method() string
@@ -63,7 +66,7 @@ func validateParams(method string, params map[string]string) (map[string]string,
 // * detects authentication type (e.g. Bearer or Basic)
 // * delegates actual authentication to type-specific implementation
 func NewToken(registry, repository, username, password string) (TokenResponse, error) {
-	url := "https://" + registry + "/v2"
+	url := WebSchema + registry + "/v2"
 
 	resp, err := http.Get(url)
 	if err != nil {
diff --git a/main.go b/main.go
index f6eadbd..71d3c73 100644
--- a/main.go
+++ b/main.go
@@ -17,14 +17,15 @@ import (
 )
 
 type options struct {
-	DefaultRegistry string `short:"r" long:"default-registry" default:"registry.hub.docker.com" description:"Docker registry to use by default" env:"DEFAULT_REGISTRY"`
-	Username        string `short:"u" long:"username" default:"" description:"Docker registry username" env:"USERNAME"`
-	Password        string `short:"p" long:"password" default:"" description:"Docker registry password" env:"PASSWORD"`
-	DockerJSON      string `shord:"j" long:"docker-json" default:"~/.docker/config.json" env:"DOCKER_JSON"`
-	Concurrency     int    `short:"c" long:"concurrency" default:"32" description:"Concurrent request limit while querying registry" env:"CONCURRENCY"`
-	TraceRequests   bool   `short:"T" long:"trace-requests" description:"Trace registry HTTP requests" env:"TRACE_REQUESTS"`
-	Version         bool   `short:"V" long:"version" description:"Show version and exit"`
-	Positional      struct {
+	DefaultRegistry  string `short:"r" long:"default-registry" default:"registry.hub.docker.com" description:"Docker registry to use by default" env:"DEFAULT_REGISTRY"`
+	Username         string `short:"u" long:"username" default:"" description:"Docker registry username" env:"USERNAME"`
+	Password         string `short:"p" long:"password" default:"" description:"Docker registry password" env:"PASSWORD"`
+	DockerJSON       string `shord:"j" long:"docker-json" default:"~/.docker/config.json" env:"DOCKER_JSON"`
+	Concurrency      int    `short:"c" long:"concurrency" default:"32" description:"Concurrent request limit while querying registry" env:"CONCURRENCY"`
+	InsecureRegistry bool   `short:"i" long:"insecure-registry" description:"Use insecure plain-HTTP registriy" env:"INSECURE_REGISTRY"`
+	TraceRequests    bool   `short:"T" long:"trace-requests" description:"Trace registry HTTP requests" env:"TRACE_REQUESTS"`
+	Version          bool   `short:"V" long:"version" description:"Show version and exit"`
+	Positional       struct {
 		Repository string `positional-arg-name:"REPOSITORY" description:"Docker repository to list tags from"`
 	} `positional-args:"yes"`
 }
@@ -137,6 +138,11 @@ func main() {
 		suicide(errors.New("You should provide a repository name, e.g. 'nginx' or 'mesosphere/chronos'"))
 	}
 
+	if o.InsecureRegistry {
+		auth.WebSchema = "http://"
+		registry.WebSchema = "http://"
+	}
+
 	registry.TraceRequests = o.TraceRequests
 
 	repository, filter, err := trimFilter(o.Positional.Repository)
diff --git a/tag/registry/registry.go b/tag/registry/registry.go
index aedb222..8d91a0b 100644
--- a/tag/registry/registry.go
+++ b/tag/registry/registry.go
@@ -17,6 +17,9 @@ import (
 	"github.com/ivanilves/lstags/tag"
 )
 
+// WebSchema defines how do we connect to remote web servers
+var WebSchema = "https://"
+
 // TraceRequests defines if we should print out HTTP request URLs and response headers/bodies
 var TraceRequests = false
 
@@ -101,7 +104,7 @@ func parseTagNamesJSON(data io.ReadCloser) ([]string, error) {
 }
 
 func fetchTagNames(registry, repo, authorization string) ([]string, error) {
-	url := "https://" + registry + "/v2/" + repo + "/tags/list"
+	url := WebSchema + registry + "/v2/" + repo + "/tags/list"
 
 	resp, err := httpRequest(url, authorization, "v2")
 	if err != nil {
@@ -173,7 +176,7 @@ func fetchDigest(url, authorization string) (string, error) {
 }
 
 func fetchDetails(registry, repo, tagName, authorization string) (string, int64, error) {
-	url := "https://" + registry + "/v2/" + repo + "/manifests/" + tagName
+	url := WebSchema + registry + "/v2/" + repo + "/manifests/" + tagName
 
 	dc := make(chan string, 0)
 	cc := make(chan int64, 0)