diff --git a/features.json b/features.json
index d869491..5767376 100644
--- a/features.json
+++ b/features.json
@@ -104,7 +104,8 @@
 				"signExtensions": "74",
 				"simd": "91",
 				"tailCall": ["flag", "Requires flag `chrome://flags/#enable-experimental-webassembly-features`"],
-				"threads": "74"
+				"threads": "74",
+				"typeReflection": ["flag", "Requires flag `chrome://flags/#enable-experimental-webassembly-features`"],
 			}
 		},
 		"Firefox": {
@@ -190,7 +191,8 @@
 				"signExtensions": true,
 				"simd": true,
 				"tailCall": ["flag", "Requires flag `--experimental-wasm-return-call`"],
-				"threads": true
+				"threads": true,
+				"typeReflection": ["flag", "Requires flag `--experimental-wasm-type-reflection`"],
 			}
 		},
 		"Deno": {