diff --git a/src/device/input/parse/v01/server.go b/src/device/input/parse/v01/server.go
index 4fe5a28..a861c5c 100644
--- a/src/device/input/parse/v01/server.go
+++ b/src/device/input/parse/v01/server.go
@@ -168,8 +168,8 @@ func (v01 *V01) serveGM(w http.ResponseWriter, r *http.Request) {
 		v01.serveGMShuffle(w, r)
 		v01.cfg.Quiet = false
 	case "/gm/rpc/swap":
-		if err := v01.serveGMSwap(r, r.URL.Query().Get("a"), r.URL.Query().Get("b")); err != nil {
-			http.Error(w, err.Error(), http.StatusBadRequest)
+		if errCode, err := v01.serveGMSwap(r, r.URL.Query().Get("a"), r.URL.Query().Get("b")); err != nil {
+			http.Error(w, err.Error(), errCode)
 			return
 		}
 		v01.cfg.Quiet = false
@@ -226,7 +226,7 @@ func (v01 *V01) serveGMShuffle(w http.ResponseWriter, r *http.Request) {
 	v01.servePutBroadcastValue(strings.Join(msg, ", "))
 }
 
-func (v01 *V01) serveGMSwap(r *http.Request, nameA, nameB string) error {
+func (v01 *V01) serveGMSwap(r *http.Request, nameA, nameB string) (int, error) {
 	getUserNameFor := func(like string) string {
 		for k, v := range v01.cfg.Users {
 			if k == like || v.Alias == like {
@@ -238,15 +238,15 @@ func (v01 *V01) serveGMSwap(r *http.Request, nameA, nameB string) error {
 	userA := getUserNameFor(nameA)
 	userB := getUserNameFor(nameB)
 	if userA == "" || userB == "" {
-		return errors.New("who dat?")
+		return http.StatusBadRequest, errors.New("who dat?")
 	}
 	if userA == userB {
-		return errors.New("/spiderman-pointing")
+		return http.StatusConflict, errors.New("/spiderman-pointing")
 	}
 	a := v01.cfg.Users[userA]
 	b := v01.cfg.Users[userB]
 	a.Player, b.Player = b.Player, a.Player
 	v01.cfg.Users[userA] = a
 	v01.cfg.Users[userB] = b
-	return nil
+	return http.StatusOK, nil
 }
diff --git a/src/device/input/parse/v01/server_test.go b/src/device/input/parse/v01/server_test.go
index b131efa..f8123ae 100644
--- a/src/device/input/parse/v01/server_test.go
+++ b/src/device/input/parse/v01/server_test.go
@@ -209,6 +209,33 @@ func TestServeGM(t *testing.T) {
 	})
 
 	t.Run("swap", func(t *testing.T) {
+		t.Run("self", func(t *testing.T) {
+			v01 := NewV01(ctx, nil)
+			v01.cfg.Quiet = true
+			v01.cfg.Users = map[string]configUser{
+				"bel": configUser{Player: 1},
+			}
+			resp := do(v01, "/gm/rpc/swap?a=bel&b=bel", "")
+			if resp.Code != http.StatusConflict {
+				t.Error(resp.Code)
+			}
+			if !v01.cfg.Quiet {
+				t.Error(v01.cfg.Quiet)
+			}
+		})
+
+		t.Run("who", func(t *testing.T) {
+			v01 := NewV01(ctx, nil)
+			v01.cfg.Quiet = true
+			resp := do(v01, "/gm/rpc/swap?a=bel", "")
+			if resp.Code != http.StatusBadRequest {
+				t.Error(resp.Code)
+			}
+			if !v01.cfg.Quiet {
+				t.Error(v01.cfg.Quiet)
+			}
+		})
+
 		t.Run("happy", func(t *testing.T) {
 			v01 := NewV01(ctx, nil)
 			v01.cfg.Quiet = true