diff --git a/provider/azure_test.go b/provider/azure_test.go
index ed04b26694..ef48878a2d 100644
--- a/provider/azure_test.go
+++ b/provider/azure_test.go
@@ -469,7 +469,7 @@ func TestAzureGetAccessToken(t *testing.T) {
 	if err != nil {
 		t.Fatalf("expected to construct a token successfully, but got error %v", err)
 	}
-	_, err := token.MarshalJSON()
+	_, err = token.MarshalJSON()
 	if err == nil ||
 		!strings.Contains(err.Error(), "marshalling ServicePrincipalMSISecret is not supported") {
 		t.Fatalf("expected to fail to marshal token, but got %v", err)