diff --git a/src/Umbraco.Web.UI.Client/src/packages/log-viewer/workspace/logviewer-workspace.context.ts b/src/Umbraco.Web.UI.Client/src/packages/log-viewer/workspace/logviewer-workspace.context.ts
index 30221b71ed..50a8874129 100644
--- a/src/Umbraco.Web.UI.Client/src/packages/log-viewer/workspace/logviewer-workspace.context.ts
+++ b/src/Umbraco.Web.UI.Client/src/packages/log-viewer/workspace/logviewer-workspace.context.ts
@@ -124,7 +124,7 @@ export class UmbLogViewerWorkspaceContext extends UmbControllerBase implements U
 
 	onChangeState = () => {
 		const searchQuery = query();
-		this.setFilterExpression(searchQuery.lq);
+		this.setFilterExpression(searchQuery.lq ?? '');
 
 		let validLogLevels: LogLevelModel[] = [];
 		if (searchQuery.loglevels) {