diff --git a/acme/autocert/autocert.go b/acme/autocert/autocert.go
index 0061c28..6b4cdf4 100644
--- a/acme/autocert/autocert.go
+++ b/acme/autocert/autocert.go
@@ -463,7 +463,7 @@ func (m *Manager) cert(ctx context.Context, ck certKey) (*tls.Certificate, error
 		leaf: cert.Leaf,
 	}
 	m.state[ck] = s
-	go m.startRenew(ck, s.key, s.leaf.NotAfter)
+	m.startRenew(ck, s.key, s.leaf.NotAfter)
 	return cert, nil
 }
 
@@ -609,7 +609,7 @@ func (m *Manager) createCert(ctx context.Context, ck certKey) (*tls.Certificate,
 	}
 	state.cert = der
 	state.leaf = leaf
-	go m.startRenew(ck, state.key, state.leaf.NotAfter)
+	m.startRenew(ck, state.key, state.leaf.NotAfter)
 	return state.tlscert()
 }
 
diff --git a/acme/autocert/autocert_test.go b/acme/autocert/autocert_test.go
index 59f6e0e..789a441 100644
--- a/acme/autocert/autocert_test.go
+++ b/acme/autocert/autocert_test.go
@@ -382,7 +382,7 @@ func TestGetCertificate(t *testing.T) {
 			},
 		},
 		{
-			name:   "expiredCache",
+			name:   "almostExpiredCache",
 			hello:  clientHelloInfo("example.org", algECDSA),
 			domain: "example.org",
 			prepare: func(t *testing.T, man *Manager, s *acmetest.CAServer) {