diff --git a/packages/bridge-controller/CHANGELOG.md b/packages/bridge-controller/CHANGELOG.md
index 824f2b2e8d..75b4e1f3c5 100644
--- a/packages/bridge-controller/CHANGELOG.md
+++ b/packages/bridge-controller/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Add optional `environment_type` property to the `ButtonClicked` unified swap/bridge event context ([#9121](https://github.com/MetaMask/core/pull/9121))
+
 ### Changed
 
 - Bump `@metamask/assets-controllers` from `^109.0.0` to `^109.1.0` ([#9110](https://github.com/MetaMask/core/pull/9110))
diff --git a/packages/bridge-controller/src/utils/metrics/types.ts b/packages/bridge-controller/src/utils/metrics/types.ts
index b766a6ba01..ed34dfb9eb 100644
--- a/packages/bridge-controller/src/utils/metrics/types.ts
+++ b/packages/bridge-controller/src/utils/metrics/types.ts
@@ -111,7 +111,7 @@ type RequiredEventContextFromClientBase = {
   [UnifiedSwapBridgeEventName.ButtonClicked]: Pick<
     RequestParams,
     'token_symbol_source' | 'token_symbol_destination'
-  >;
+  > & { environment_type?: string };
   // When type is object, the payload can be anything
   [UnifiedSwapBridgeEventName.PageViewed]: object;
   [UnifiedSwapBridgeEventName.InputChanged]: {