diff --git a/src/main/java/org/asamk/signal/manager/Manager.java b/src/main/java/org/asamk/signal/manager/Manager.java
index e57bd531..9515a2fd 100644
--- a/src/main/java/org/asamk/signal/manager/Manager.java
+++ b/src/main/java/org/asamk/signal/manager/Manager.java
@@ -746,7 +746,7 @@ public class Manager implements Closeable {
         if (name.isEmpty()) {
             name = null;
         }
-        if (members.size() == 0) {
+        if (members.isEmpty()) {
             members = null;
         }
         if (avatar.isEmpty()) {