diff --git a/decrr_test.go b/decrr_test.go
index e3e3b75..51b01cf 100644
--- a/decrr_test.go
+++ b/decrr_test.go
@@ -3,8 +3,7 @@ package decrr_test
 import (
 	"errors"
 	"os"
-	"os/exec"
-	"strings"
+	"runtime"
 	"testing"
 
 	"github.com/aldy505/decrr"
@@ -15,16 +14,11 @@ func TestWrap(t *testing.T) {
 	w := decrr.Wrap(x)
 	wd, _ := os.Getwd()
 
-	cmd, err := exec.Command("bash", "-c", "go env | grep GOROOT").CombinedOutput()
-	if err != nil {
-		t.Error(err)
-	}
-
-	gt := strings.Replace(strings.Replace(strings.Replace(string(cmd), "GOROOT=", "", 1), "\"", "", 2), "\n", "", -1)
+	gt := runtime.GOROOT()
 
 	var expected string
 	expected += "why does a chicken cross the road?\n\n"
-	expected += "github.com/aldy505/decrr_test.TestWrap " + wd + "/decrr_test.go:15\n"
+	expected += "github.com/aldy505/decrr_test.TestWrap " + wd + "/decrr_test.go:14\n"
 	expected += "testing.tRunner " + gt + "/src/testing/testing.go:1259\n"
 	expected += "runtime.goexit " + gt + "/src/runtime/asm_amd64.s:1581"