diff --git a/extensions/matrix/runtime-api.ts b/extensions/matrix/runtime-api.ts
index 2c52135acf5..ce6857b9108 100644
--- a/extensions/matrix/runtime-api.ts
+++ b/extensions/matrix/runtime-api.ts
@@ -2,6 +2,10 @@
 // helpers without traversing the full plugin-sdk/runtime graph or bootstrapping
 // matrix-js-sdk during plain runtime-api import.
 export * from "./src/auth-precedence.js";
+export {
+  requiresExplicitMatrixDefaultAccount,
+  resolveMatrixDefaultOrOnlyAccountId,
+} from "./src/account-selection.js";
 export * from "./helper-api.js";
 export {
   assertHttpUrlTargetsPrivateNetwork,