diff --git a/staging/src/k8s.io/legacy-cloud-providers/azure/azure_instances_test.go b/staging/src/k8s.io/legacy-cloud-providers/azure/azure_instances_test.go
index 7d0ea8d139e..9caf2665d67 100644
--- a/staging/src/k8s.io/legacy-cloud-providers/azure/azure_instances_test.go
+++ b/staging/src/k8s.io/legacy-cloud-providers/azure/azure_instances_test.go
@@ -350,7 +350,7 @@ func TestNodeAddresses(t *testing.T) {
 
 		mux := http.NewServeMux()
 		mux.Handle("/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			fmt.Fprint(w, metadataTemplate, test.nodeName, test.ipV4, test.ipV4Public, test.ipV6, test.ipV6Public)
+			fmt.Fprintf(w, metadataTemplate, test.nodeName, test.ipV4, test.ipV4Public, test.ipV6, test.ipV6Public)
 		}))
 		go func() {
 			http.Serve(listener, mux)