diff --git a/src/ZB.MOM.WW.ScadaBridge.InboundAPI/InboundScriptExecutor.cs b/src/ZB.MOM.WW.ScadaBridge.InboundAPI/InboundScriptExecutor.cs
index 8e50228e..b863ac16 100644
--- a/src/ZB.MOM.WW.ScadaBridge.InboundAPI/InboundScriptExecutor.cs
+++ b/src/ZB.MOM.WW.ScadaBridge.InboundAPI/InboundScriptExecutor.cs
@@ -317,7 +317,7 @@ public class InboundScriptExecutor
             // repository round-trip entirely. A dangling ref surfaces as a descriptive
             // validation failure naming the missing reference, not an opaque parse error.
             var sharedSchemaRepo =
-                (scope?.ServiceProvider ?? _serviceProvider).GetService<ISharedSchemaRepository>();
+                scope?.ServiceProvider.GetService<ISharedSchemaRepository>();
             var resolveRef = await SchemaRefResolver.BuildAsync(
                 sharedSchemaRepo, [method.ReturnDefinition], cts.Token);