diff --git a/.gitignore b/.gitignore
index 3e12100..cf89f8d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,4 +5,5 @@ positions.txt
 volume.txt
 .claude/
 audio/
+docker/.build
 
diff --git a/docker/.build b/docker/.build
deleted file mode 100644
index e69de29..0000000