diff --git a/src/logging/BaseLogger.ts b/src/logging/BaseLogger.ts
index 4b04b510..3b2842ad 100644
--- a/src/logging/BaseLogger.ts
+++ b/src/logging/BaseLogger.ts
@@ -35,7 +35,7 @@ export abstract class BaseLogger {
     }
 
     /** if item is a log item, wrap the callback in a child of it, otherwise start a new root log item. */
-    wrapOrRun<T>(item: ILogItem, labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T {
+    wrapOrRun<T>(item: ILogItem | undefined, labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T {
         if (item) {
             return item.wrap(labelOrValues, callback, logLevel, filterCreator);
         } else {