diff --git a/gradle.properties b/gradle.properties
index 0a5f506..324dbcb 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -5,7 +5,7 @@ org.gradle.configuration-cache=false
 
 # Mod
 mod_id=video_player
-mod_version=0.4.29
+mod_version=0.4.30
 maven_group=com.ejclaw.videoplayer
 archives_base_name=video_player
 
diff --git a/src/main/java/com/ejclaw/videoplayer/command/VideoStickCommand.java b/src/main/java/com/ejclaw/videoplayer/command/VideoStickCommand.java
index c5bad18..2f84b68 100644
--- a/src/main/java/com/ejclaw/videoplayer/command/VideoStickCommand.java
+++ b/src/main/java/com/ejclaw/videoplayer/command/VideoStickCommand.java
@@ -6,13 +6,18 @@ import net.minecraft.commands.CommandSourceStack;
 import net.minecraft.commands.Commands;
 import net.minecraft.network.chat.Component;
 import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.permissions.Permissions;
 import net.minecraft.world.item.ItemStack;
 
 public final class VideoStickCommand {
     private VideoStickCommand() {}
 
     public static void register(CommandDispatcher<CommandSourceStack> dispatcher) {
+        // OP/console/command-block 만 사용 가능. Permissions.COMMANDS_GAMEMASTER = level 2,
+        // 즉 /op 받은 플레이어(level 4) 와 콘솔(level 4), command block(default level 2) 통과.
+        // 일반 플레이어(level 0) 는 탭 자동완성에도 안 떠야 정상.
         dispatcher.register(Commands.literal("videoStick")
+            .requires(s -> s.permissions().hasPermission(Permissions.COMMANDS_GAMEMASTER))
             .executes(ctx -> run(ctx.getSource())));
     }