diff --git a/testdata/main.go b/testdata/main.go
index c98f3aa..4b3d389 100644
--- a/testdata/main.go
+++ b/testdata/main.go
@@ -15,6 +15,8 @@
 // REMOVE THIS testdata DIR
 package main
 
+import "fmt"
+
 func main() {
 	fmt.Println("Hello, World!")
 }