diff --git a/librecursebuster/main_test.go b/librecursebuster/main_test.go
index 3df330b..9eb06d1 100644
--- a/librecursebuster/main_test.go
+++ b/librecursebuster/main_test.go
@@ -156,7 +156,6 @@ func TestBadHeaders(t *testing.T) {
 	cfg := getDefaultConfig()
 	cfg.BadHeader = ArrayStringFlag{}
 	cfg.BadHeader.Set("X-Bad-Header: test123")
-	fmt.Println(cfg.BadHeader)
 	urlSlice := preSetupTest(cfg, "2005", finished)
 	gState.WordList = append(gState.WordList, "badheader")
 	found := postSetupTest(urlSlice)
@@ -170,6 +169,28 @@ func TestBadHeaders(t *testing.T) {
 
 }
 
+func TestAjax(t *testing.T) {
+	//ensure that basic auth checks are found
+	finished := make(chan struct{})
+	cfg := getDefaultConfig()
+	cfg.Ajax = true
+	urlSlice := preSetupTest(cfg, "2006", finished)
+	gState.WordList = append(gState.WordList, "ajaxonly")
+	gState.WordList = append(gState.WordList, "onlynoajax")
+	found := postSetupTest(urlSlice)
+	gState.Wait()
+
+	fmt.Println(found)
+	if x, ok := found["/ajaxonly"]; !ok || !x {
+		panic("Failed ajax header check")
+	}
+
+	if x, ok := found["/onlynoajax"]; ok || x {
+		panic("Failed ajax header check")
+	}
+
+}
+
 func postSetupTest(urlSlice []string) (found map[string]bool) {
 	//start up the management goroutines
 	go ManageRequests()
diff --git a/librecursebuster/structs.go b/librecursebuster/structs.go
index d681765..8fb4822 100644
--- a/librecursebuster/structs.go
+++ b/librecursebuster/structs.go
@@ -249,6 +249,7 @@ type HostState struct {
 //Config represents the configuration supplied at runtime. Different to program State which can change, this is set once, and only queried during program operation.
 type Config struct {
 	Agent             string
+	Ajax              bool
 	AppendDir         bool
 	Auth              string
 	BadResponses      string
@@ -320,6 +321,11 @@ type SpiderPage struct {
 //SetupState will perform all the basic state setup functions (adding URL's to the blacklist etc)
 func SetupState(globalState *State) {
 	SetState(globalState)
+
+	if gState.Cfg.Ajax {
+		gState.Cfg.Headers = append(gState.Cfg.Headers, "X-Requested-With:XMLHttpRequest")
+	}
+
 	for _, x := range strings.Split(gState.Cfg.Extensions, ",") {
 		gState.Extensions = append(gState.Extensions, x)
 	}
diff --git a/librecursebuster/testserver/main.go b/librecursebuster/testserver/main.go
index 4970897..75c5332 100644
--- a/librecursebuster/testserver/main.go
+++ b/librecursebuster/testserver/main.go
@@ -109,6 +109,18 @@ func handler(w http.ResponseWriter, r *http.Request) {
 		respCode = 500
 	case "/c/d":
 		respCode = 666
+	case "/ajaxonly":
+		if r.Header.Get("X-Requested-With") == "XMLHttpRequest" {
+			respCode = 200
+		} else {
+			respCode = 404
+		}
+	case "/onlynoajax":
+		if r.Header.Get("X-Requested-With") == "XMLHttpRequest" {
+			respCode = 404
+		} else {
+			respCode = 200
+		}
 	default:
 		respCode = 404
 	}
diff --git a/main.go b/main.go
index a83cb42..19db0fa 100644
--- a/main.go
+++ b/main.go
@@ -14,7 +14,7 @@ import (
 	"github.com/fatih/color"
 )
 
-const version = "1.5.8"
+const version = "1.5.9"
 
 func main() {
 	if runtime.GOOS == "windows" { //lol goos
@@ -35,6 +35,7 @@ func main() {
 	globalState.TotalTested = &totesTested
 	flag.BoolVar(&globalState.Cfg.ShowAll, "all", false, "Show, and write the result of all checks")
 	flag.BoolVar(&globalState.Cfg.AppendDir, "appendslash", false, "Append a / to all directory bruteforce requests (like extension, but slash instead of .yourthing)")
+	flag.BoolVar(&globalState.Cfg.Ajax, "ajax", false, "Add the X-Requested-With: XMLHttpRequest header to all requests")
 	flag.StringVar(&globalState.Cfg.Auth, "auth", "", "Basic auth. Supply this with the base64 encoded portion to be placed after the word 'Basic' in the Authorization header.")
 	flag.StringVar(&globalState.Cfg.BadResponses, "bad", "404", "Responses to consider 'bad' or 'not found'. Comma-separated. This works the opposite way of gobuster!")
 	flag.Var(&globalState.Cfg.BadHeader, "badheader", "Check for presence of this header. If an exact match is found, the response is considered bad.Supply as key:value. Can specify multiple - eg '-badheader Location:cats -badheader X-ATT-DeviceId:XXXXX'")