diff --git a/src/featureManagement/constants.ts b/src/featureManagement/constants.ts
index fe4d8cdf..55a1dc54 100644
--- a/src/featureManagement/constants.ts
+++ b/src/featureManagement/constants.ts
@@ -6,6 +6,6 @@ export const FEATURE_FLAGS_KEY_NAME = "feature_flags";
 export const TELEMETRY_KEY_NAME = "telemetry";
 export const ENABLED_KEY_NAME = "enabled";
 export const METADATA_KEY_NAME = "metadata";
-export const ETAG_KEY_NAME = "Etag";
+export const ETAG_KEY_NAME = "ETag";
 export const FEATURE_FLAG_ID_KEY_NAME = "FeatureFlagId";
 export const FEATURE_FLAG_REFERENCE_KEY_NAME = "FeatureFlagReference";
diff --git a/test/featureFlag.test.ts b/test/featureFlag.test.ts
index 05537fcc..dfca1c0e 100644
--- a/test/featureFlag.test.ts
+++ b/test/featureFlag.test.ts
@@ -54,8 +54,8 @@ const mockedKVs = [{
     createMockedFeatureFlag("Beta", { enabled: true }),
     createMockedFeatureFlag("Alpha_1", { enabled: true }),
     createMockedFeatureFlag("Alpha_2", { enabled: false }),
-    createMockedFeatureFlag("Telemetry_1", { enabled: true, telemetry: { enabled: true } }, { etag: "Etag"}),
-    createMockedFeatureFlag("Telemetry_2", { enabled: true, telemetry: { enabled: true } }, { etag: "Etag", label: "Test"})
+    createMockedFeatureFlag("Telemetry_1", { enabled: true, telemetry: { enabled: true } }, { etag: "ETag"}),
+    createMockedFeatureFlag("Telemetry_2", { enabled: true, telemetry: { enabled: true } }, { etag: "ETag", label: "Test"})
 ]);
 
 describe("feature flags", function () {
@@ -187,7 +187,7 @@ describe("feature flags", function () {
         expect(featureFlag.id).equals("Telemetry_1");
         expect(featureFlag.telemetry).not.undefined;
         expect(featureFlag.telemetry.enabled).equals(true);
-        expect(featureFlag.telemetry.metadata.Etag).equals("Etag");
+        expect(featureFlag.telemetry.metadata.ETag).equals("ETag");
         expect(featureFlag.telemetry.metadata.FeatureFlagId).equals("krkOsu9dVV9huwbQDPR6gkV_2T0buWxOCS-nNsj5-6g");
         expect(featureFlag.telemetry.metadata.FeatureFlagReference).equals(`${createMockedEndpoint()}/kv/.appconfig.featureflag/Telemetry_1`);
 
@@ -196,7 +196,7 @@ describe("feature flags", function () {
         expect(featureFlag.id).equals("Telemetry_2");
         expect(featureFlag.telemetry).not.undefined;
         expect(featureFlag.telemetry.enabled).equals(true);
-        expect(featureFlag.telemetry.metadata.Etag).equals("Etag");
+        expect(featureFlag.telemetry.metadata.ETag).equals("ETag");
         expect(featureFlag.telemetry.metadata.FeatureFlagId).equals("Rc8Am7HIGDT7HC5Ovs3wKN_aGaaK_Uz1mH2e11gaK0o");
         expect(featureFlag.telemetry.metadata.FeatureFlagReference).equals(`${createMockedEndpoint()}/kv/.appconfig.featureflag/Telemetry_2?label=Test`);
     });