diff --git a/src/Store/featureFlagStore.ts b/src/Store/featureFlagStore.ts
index 7e55768..8954ec2 100644
--- a/src/Store/featureFlagStore.ts
+++ b/src/Store/featureFlagStore.ts
@@ -17,6 +17,7 @@ export interface FeatureFlags {
   qdmCodeSearch: boolean;
   QDMValueSetSearch: boolean;
   CQLBuilderDefinitions: boolean;
+  CQLBuilderTabs: boolean;
   ShiftTestCasesDates: boolean;
   associateMeasures: boolean;
   qiCoreStu4Updates: boolean;
@@ -35,6 +36,7 @@ const initialState: FeatureFlags = {
   qdmCodeSearch: false,
   QDMValueSetSearch: false,
   CQLBuilderDefinitions: false,
+  CQLBuilderTabs: false,
   ShiftTestCasesDates: false,
   associateMeasures: false,
   qiCoreStu4Updates: false,