diff --git a/internal/backends/memory/backend.go b/internal/backends/memory/backend.go
index 913d41e..b480d95 100644
--- a/internal/backends/memory/backend.go
+++ b/internal/backends/memory/backend.go
@@ -7,6 +7,8 @@ import (
 	"strings"
 	"sync"
 
+	"github.com/signaller-matrix/signaller/internal/models/common"
+
 	"github.com/signaller-matrix/signaller/internal"
 	"github.com/signaller-matrix/signaller/internal/models"
 	"github.com/signaller-matrix/signaller/internal/models/createroom"
@@ -52,7 +54,8 @@ func (backend *Backend) Register(username, password, device string) (user intern
 		name:     username,
 		password: password,
 		Tokens:   make(map[string]Token),
-		backend:  backend}
+		backend:  backend,
+		filters:  make(map[string]common.Filter)}
 
 	backend.data[username] = user
 
diff --git a/internal/handlers.go b/internal/handlers.go
index a79dc8a..1075153 100644
--- a/internal/handlers.go
+++ b/internal/handlers.go
@@ -324,7 +324,7 @@ func CapabilitiesHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func AddFilterHandler(w http.ResponseWriter, r *http.Request) {
-	if r.Method != http.MethodGet {
+	if r.Method != http.MethodPost {
 		errorResponse(w, models.M_UNKNOWN, http.StatusBadRequest, "wrong method: "+r.Method)
 		return
 	}
diff --git a/internal/server.go b/internal/server.go
index 4f04122..3d966d9 100644
--- a/internal/server.go
+++ b/internal/server.go
@@ -40,7 +40,7 @@ func NewServer(port int) (*Server, error) {
 	router.HandleFunc("/_matrix/client/r0/rooms/{roomId}/leave", leaveRoomHandler)
 	router.HandleFunc("/_matrix/client/r0/register/available", registerAvailableHandler)
 	router.HandleFunc("/_matrix/client/r0/publicRooms", publicRoomsHandler)
-	router.HandleFunc("/_matrix/client/r0/user/{userId}/filter/{filterId}", GetFilterHandler).Methods("GET")
+	router.HandleFunc("/_matrix/client/r0/user/{userId}/filter/{filterID}", GetFilterHandler).Methods("GET")
 	router.HandleFunc("/_matrix/client/r0/user/{userId}/filter", AddFilterHandler).Methods("POST")
 
 	router.HandleFunc("/", RootHandler)