diff --git a/src/crypto/rsa/pkcs1v15_test.go b/src/crypto/rsa/pkcs1v15_test.go
index cc5274391ab..8b40ba4b676 100644
--- a/src/crypto/rsa/pkcs1v15_test.go
+++ b/src/crypto/rsa/pkcs1v15_test.go
@@ -222,6 +222,7 @@ func TestSignPKCS1v15WithPublicKeySizeZero(t *testing.T) {
 		&PrivateKey{
 			PublicKey: PublicKey{
 				N: big.NewInt(0),
+				E: 65537,
 			},
 		}, crypto.SHA1, digest)
 	if err == nil {
diff --git a/src/crypto/rsa/rsa_test.go b/src/crypto/rsa/rsa_test.go
index 38765bf4b65..cfb5e0318d0 100644
--- a/src/crypto/rsa/rsa_test.go
+++ b/src/crypto/rsa/rsa_test.go
@@ -656,7 +656,7 @@ func TestEncryptOAEP(t *testing.T) {
 
 func TestEncryptOAEPWithPublicKeySizeZero(t *testing.T) {
 	sha1 := sha1.New()
-	_, err := EncryptOAEP(sha1, nil, &PublicKey{N: big.NewInt(0)}, nil, nil)
+	_, err := EncryptOAEP(sha1, nil, &PublicKey{N: big.NewInt(0), E: 65537}, nil, nil)
 	if err == nil {
 		t.Error("expected error but got nil")
 	}