1 files changed, 1 insertions, 0 deletions
diff --git a/tls.go b/tls.go
index 0ad56f4..fa25441 100644
--- a/tls.go
+++ b/tls.go
@@ -98,6 +98,7 @@ func createIdentity(state *BrowserState, name string) (*tls.Config, error) {
 		Subject:               pkix.Name{CommonName: commonName},
 		NotAfter:              expiration,
 		KeyUsage:              x509.KeyUsageDigitalSignature,
+		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth},
 		BasicConstraintsValid: true,
 	}