diff --git a/Dockerfile b/Dockerfile
index 799d872..baacfe0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,14 +2,12 @@ FROM php:cli
 
 WORKDIR /app
 
-COPY ./h-m-m .
-
 RUN apt-get update \
   && apt-get install -y --no-install-recommends \
   libonig-dev xclip xsel wl-clipboard
 
 RUN docker-php-ext-install mbstring
 
-RUN chmod +x h-m-m
+COPY ./h-m-m .
 
 CMD ["./h-m-m"]