diff --git a/common/compiler/solidity_test.go b/common/compiler/solidity_test.go
index 46296dcde9..5691a757f4 100644
--- a/common/compiler/solidity_test.go
+++ b/common/compiler/solidity_test.go
@@ -19,6 +19,7 @@ package compiler
 import (
 	"io/ioutil"
 	"os"
+	"os/exec"
 	"path/filepath"
 	"strings"
 	"testing"