1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/src/tls/DtlsClientProtocol.cs b/crypto/src/tls/DtlsClientProtocol.cs
index c1bad2e6f..aab3853fb 100644
--- a/crypto/src/tls/DtlsClientProtocol.cs
+++ b/crypto/src/tls/DtlsClientProtocol.cs
@@ -468,7 +468,7 @@ namespace Org.BouncyCastle.Tls
             state.clientAgreements = TlsUtilities.AddKeyShareToClientHello(state.clientContext, state.client,
                 state.clientExtensions);
 
-            if (TlsUtilities.IsExtendedMasterSecretOptionalDtls(context.ClientSupportedVersions)
+            if (TlsUtilities.IsExtendedMasterSecretOptional(context.ClientSupportedVersions)
                 && state.client.ShouldUseExtendedMasterSecret())
             {
                 TlsExtensionsUtilities.AddExtendedMasterSecretExtension(state.clientExtensions);