diff --git a/models/tracker/src/index.ts b/models/tracker/src/index.ts
index efe801682c..f5f569a25f 100644
--- a/models/tracker/src/index.ts
+++ b/models/tracker/src/index.ts
@@ -522,7 +522,7 @@ export function createModel (builder: Builder): void {
       {
         key: 'shouldShowSubIssues',
         type: 'toggle',
-        defaultValue: false,
+        defaultValue: true,
         actionTarget: 'query',
         action: tracker.function.SubIssueQuery,
         label: tracker.string.SubIssues