diff --git a/src/main/java/emu/grasscutter/server/packet/send/PacketPlayerWorldSceneInfoListNotify.java b/src/main/java/emu/grasscutter/server/packet/send/PacketPlayerWorldSceneInfoListNotify.java
index dd7d0be1e..a61386691 100644
--- a/src/main/java/emu/grasscutter/server/packet/send/PacketPlayerWorldSceneInfoListNotify.java
+++ b/src/main/java/emu/grasscutter/server/packet/send/PacketPlayerWorldSceneInfoListNotify.java
@@ -27,7 +27,7 @@ public class PacketPlayerWorldSceneInfoListNotify extends BasePacket {
             /* Add scene-specific data */
 
             // Scenetags
-            if (sceneTags.keySet().contains(scene)) {
+            if (sceneTags.containsKey(scene)) {
                 worldInfoBuilder.addAllSceneTagIdList(
                         sceneTags.entrySet().stream()
                                 .filter(e -> e.getKey().equals(scene))
diff --git a/src/main/java/emu/grasscutter/utils/StartupArguments.java b/src/main/java/emu/grasscutter/utils/StartupArguments.java
index 1aae558bb..d538c729a 100644
--- a/src/main/java/emu/grasscutter/utils/StartupArguments.java
+++ b/src/main/java/emu/grasscutter/utils/StartupArguments.java
@@ -61,13 +61,12 @@ public interface StartupArguments {
                                     // Aliases.
                                     "-v",
                                     StartupArguments::printVersion));
-                    putAll(
-                            Map.of(
-                                    "-debugall",
-                                    parameter -> {
-                                        StartupArguments.enableDebug("all");
-                                        return false;
-                                    }));
+                    put(
+                            "-debugall",
+                            parameter -> {
+                                StartupArguments.enableDebug("all");
+                                return false;
+                            });
                 }
             };