diff --git a/test/EFCore.SqlServer.FunctionalTests/Query/QueryBugsTest.cs b/test/EFCore.SqlServer.FunctionalTests/Query/QueryBugsTest.cs
index 3ba757e984d..03369fbe834 100644
--- a/test/EFCore.SqlServer.FunctionalTests/Query/QueryBugsTest.cs
+++ b/test/EFCore.SqlServer.FunctionalTests/Query/QueryBugsTest.cs
@@ -7040,7 +7040,11 @@ public enum BusinessType18346
         [ConditionalFact]
         public virtual async Task Thread_safety_in_relational_command_cache()
         {
-            var contextFactory = await InitializeAsync<MyContext21666>();
+            var contextFactory = await InitializeAsync<MyContext21666>(
+                onConfiguring: options =>((IDbContextOptionsBuilderInfrastructure)options).AddOrUpdateExtension(
+                    options.Options.FindExtension<SqlServerOptionsExtension>()
+                        .WithConnection(null)
+                        .WithConnectionString(SqlServerTestStore.CreateConnectionString(StoreName))));
 
             var ids = new[] { 1, 2, 3 };