diff --git a/ElementX/Sources/Mocks/RoomProxyMock.swift b/ElementX/Sources/Mocks/RoomProxyMock.swift
index 30e755def5..85fc38e886 100644
--- a/ElementX/Sources/Mocks/RoomProxyMock.swift
+++ b/ElementX/Sources/Mocks/RoomProxyMock.swift
@@ -29,6 +29,7 @@ struct RoomProxyMockConfiguration {
     var isEncrypted = true
     var hasOngoingCall = true
     var canonicalAlias: String?
+    var pinnedEventIDs: [String] = []
     
     var timelineStartReached = false
     
@@ -63,6 +64,8 @@ extension RoomProxyMock {
         hasOngoingCall = configuration.hasOngoingCall
         canonicalAlias = configuration.canonicalAlias
         
+        underlyingPinnedEventIDs = configuration.pinnedEventIDs
+        
         let timeline = TimelineProxyMock()
         timeline.sendMessageEventContentReturnValue = .success(())
         timeline.paginateBackwardsRequestSizeReturnValue = .success(())