diff --git a/bridgev2/networkinterface.go b/bridgev2/networkinterface.go
index 8a39c7f8..9bbcf897 100644
--- a/bridgev2/networkinterface.go
+++ b/bridgev2/networkinterface.go
@@ -18,6 +18,7 @@ import (
 	"go.mau.fi/util/ptr"
 	"go.mau.fi/util/random"
 
+	"maunium.net/go/mautrix"
 	"maunium.net/go/mautrix/bridgev2/database"
 	"maunium.net/go/mautrix/bridgev2/networkid"
 	"maunium.net/go/mautrix/event"
@@ -294,6 +295,11 @@ type PortalBridgeInfoFillingNetwork interface {
 	FillPortalBridgeInfo(portal *Portal, content *event.BridgeEventContent)
 }
 
+type PersonalFilteringCustomizingNetworkAPI interface {
+	NetworkAPI
+	CustomizePersonalFilteringSpace(req *mautrix.ReqCreateRoom)
+}
+
 // ConfigValidatingNetwork is an optional interface that network connectors can implement to validate config fields
 // before the bridge is started.
 //
diff --git a/bridgev2/space.go b/bridgev2/space.go
index ae9013cb..f6d07922 100644
--- a/bridgev2/space.go
+++ b/bridgev2/space.go
@@ -172,6 +172,10 @@ func (ul *UserLogin) GetSpaceRoom(ctx context.Context) (id.RoomID, error) {
 		// TODO remove this after initial_members is supported in hungryserv
 		req.BeeperAutoJoinInvites = true
 	}
+	pfc, ok := ul.Client.(PersonalFilteringCustomizingNetworkAPI)
+	if ok {
+		pfc.CustomizePersonalFilteringSpace(req)
+	}
 	ul.SpaceRoom, err = ul.Bridge.Bot.CreateRoom(ctx, req)
 	if err != nil {
 		return "", fmt.Errorf("failed to create space room: %w", err)