diff --git a/example_test.go b/example_test.go
index a7b416c..dbe6aa7 100644
--- a/example_test.go
+++ b/example_test.go
@@ -1,9 +1,10 @@
 package quantile_test
 
 import (
-	quantile "." // import fully qualified in your code
 	"fmt"
 	"time"
+
+	"github.com/koalacxr/quantile"
 )
 
 var rpcs *quantile.Estimator
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..10976bf
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,4 @@
+module github.com/koalacxr/quantile
+
+go 1.17
+