diff --git a/src/Microsoft.Data.SqlClient/src/Microsoft/Data/Common/DbConnectionStringCommon.cs b/src/Microsoft.Data.SqlClient/src/Microsoft/Data/Common/DbConnectionStringCommon.cs
index a24e139968..35aaf412a5 100644
--- a/src/Microsoft.Data.SqlClient/src/Microsoft/Data/Common/DbConnectionStringCommon.cs
+++ b/src/Microsoft.Data.SqlClient/src/Microsoft/Data/Common/DbConnectionStringCommon.cs
@@ -524,7 +524,11 @@ internal static string ColumnEncryptionSettingToString(SqlConnectionColumnEncryp
 
         internal static bool IsValidAuthenticationTypeValue(SqlAuthenticationMethod value)
         {
-            Debug.Assert(Enum.GetNames(typeof(SqlAuthenticationMethod)).Length == 10, "SqlAuthenticationMethod enum has changed, update needed");
+#if ADONET_CERT_AUTH && NETFRAMEWORK
+            Debug.Assert(Enum.GetNames(typeof(SqlAuthenticationMethod)).Length == 12, "SqlAuthenticationMethod enum has changed, update needed");
+#else
+            Debug.Assert(Enum.GetNames(typeof(SqlAuthenticationMethod)).Length == 11, "SqlAuthenticationMethod enum has changed, update needed");
+#endif
             return value == SqlAuthenticationMethod.SqlPassword
                 || value == SqlAuthenticationMethod.ActiveDirectoryPassword
                 || value == SqlAuthenticationMethod.ActiveDirectoryIntegrated