diff --git a/csharp/src/Client/AdbcCommand.cs b/csharp/src/Client/AdbcCommand.cs
index 4e7d908d35..55dd7fbf36 100644
--- a/csharp/src/Client/AdbcCommand.cs
+++ b/csharp/src/Client/AdbcCommand.cs
@@ -31,7 +31,7 @@ public sealed class AdbcCommand : DbCommand
     {
         private AdbcStatement _adbcStatement;
         private int _timeout = 30;
-        public QueryConfiguration _queryConfiguration = new QueryConfiguration();
+        public QueryConfiguration _queryConfiguration;
 
         /// <summary>
         /// Overloaded. Initializes <see cref="AdbcCommand"/>.
diff --git a/csharp/test/Apache.Arrow.Adbc.Tests/ClientTests.cs b/csharp/test/Apache.Arrow.Adbc.Tests/ClientTests.cs
index 6783d77ae8..db4b581f83 100644
--- a/csharp/test/Apache.Arrow.Adbc.Tests/ClientTests.cs
+++ b/csharp/test/Apache.Arrow.Adbc.Tests/ClientTests.cs
@@ -109,6 +109,8 @@ public static void CanClientExecuteQuery(Adbc.Client.AdbcConnection adbcConnecti
 
             if(additionalKeywords != null)
             {
+                adbcCommand.QueryConfiguration = new QueryConfiguration();
+
                 foreach(KeywordDefinition definition in additionalKeywords)
                 {
                     adbcCommand.QueryConfiguration.Keywords.Add(definition.Keyword, definition.ReturnType);
@@ -180,6 +182,7 @@ public static void CanClientExecuteMultipleQueries(Adbc.Client.AdbcConnection ad
             adbcConnection.Open();
 
             using AdbcCommand adbcCommand = new AdbcCommand(testConfiguration.Query, adbcConnection);
+            adbcCommand.QueryConfiguration = new QueryConfiguration();
             using AdbcDataReader reader = adbcCommand.ExecuteReader();
 
             try