diff --git a/network/rounds/utils_test.go b/network/rounds/utils_test.go
index 7f8c66d29919a05d6b3599f5ef8c798c3be0f8cd..f15e4887ea5351d8385c52f1da65b7dc0a88a6c9 100644
--- a/network/rounds/utils_test.go
+++ b/network/rounds/utils_test.go
@@ -45,11 +45,11 @@ type mockMessageRetrievalComms struct {
 }
 
 func (mmrc *mockMessageRetrievalComms) AddHost(hid *id.ID, address string, cert []byte, params connect.HostParams) (host *connect.Host, err error) {
-	panic("implement me")
+	return nil, err
 }
 
 func (mmrc *mockMessageRetrievalComms) RemoveHost(hid *id.ID) {
-	panic("implement me")
+	return
 }
 
 func (mmrc *mockMessageRetrievalComms) GetHost(hostId *id.ID) (*connect.Host, bool) {