diff --git a/api/http_handler.go b/api/http_handler.go
index 1a2dffe..543aadc 100644
--- a/api/http_handler.go
+++ b/api/http_handler.go
@@ -51,7 +51,7 @@ func createSession(w http.ResponseWriter, r *http.Request) {
 
 	fmt.Fprintf(w,
 		`{
-	"sessionId":%s
+	"sessionId":"%s"
 }`, session.id)
 }