diff --git a/src/net/rpc/client_test.go b/src/net/rpc/client_test.go
index fb838eb34f..5dd111b299 100644
--- a/src/net/rpc/client_test.go
+++ b/src/net/rpc/client_test.go
@@ -8,6 +8,7 @@ import (
 	"errors"
 	"fmt"
 	"net"
+	"runtime"
 	"strings"
 	"testing"
 )