diff --git a/src/runtime/containerd-shim-v2/utils_test.go b/src/runtime/containerd-shim-v2/utils_test.go
index 492a0b41c..96faeaf71 100644
--- a/src/runtime/containerd-shim-v2/utils_test.go
+++ b/src/runtime/containerd-shim-v2/utils_test.go
@@ -73,7 +73,7 @@ func init() {
 	var err error
 
 	fmt.Printf("INFO: creating test directory\n")
-	testDir, err = ioutil.TempDir("", fmt.Sprintf("shimV2-"))
+	testDir, err = ioutil.TempDir("", "shimV2-")
 	if err != nil {
 		panic(fmt.Sprintf("ERROR: failed to create test directory: %v", err))
 	}