diff --git a/entities/identity/key_test.go b/entities/identity/key_test.go
index 764e129d8ba087806f65d9802fd34599dd4b6d87..f94ca92a225c17330a701aba1963a4508c8790f1 100644
--- a/entities/identity/key_test.go
+++ b/entities/identity/key_test.go
@@ -52,9 +52,7 @@ func TestStoreLoad(t *testing.T) {
 
 	// See https://github.com/golang/crypto/pull/175
 	rsaPriv := read.private.PrivateKey.(*rsa.PrivateKey)
-	back := rsaPriv.Primes[0]
-	rsaPriv.Primes[0] = rsaPriv.Primes[1]
-	rsaPriv.Primes[1] = back
+	rsaPriv.Primes[0], rsaPriv.Primes[1] = rsaPriv.Primes[1], rsaPriv.Primes[0]
 
 	require.True(t, k.private.PrivateKey.(*rsa.PrivateKey).Equal(read.private.PrivateKey))
 }