diff --git a/Dockerfile_gray b/Dockerfile_gray
index 20b538e..853a226 100644
--- a/Dockerfile_gray
+++ b/Dockerfile_gray
@@ -18,6 +18,7 @@ RUN set -eux && sed -i 's/dl-cdn.alpinelinux.org/mirrors.ustc.edu.cn/g' /etc/apk
     mkfontscale &&\
     mkfontdir &&\
     fc-cache -fv &&\
+    COPY /usr/share/fonts/korean /usr/share/fonts &&\
     cd /usr/share/fonts/korean &&\
     mkfontscale &&\
     mkfontdir &&\