diff --git a/.drone.yml b/.drone.yml
index 29840a9..a437f6e 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -84,11 +84,8 @@ steps:
       FONT_DIR: assets/font/
       CONFIG: assets/tcardgen.yaml
     commands:
-      - find ${OGP_DIR} -type f -name '*.png' | xargs -t --no-run-if-empty rm
-      - LIST=`find ${CONTENT_DIR} -type f -name '*.md' | grep -v '_index'`
-      - for ARTICLE in ${LIST} ; do
-      -   /tcardgen -f ${FONT_DIR} -o ${OGP_DIR} -c ${CONFIG} ${ARTICLE}
-      - done
+      - find static/ogp/ -type f -name '*.png' | xargs -t --no-run-if-empty rm
+      - find content/ -type f -name '*.md' | grep -v '_index' | xargs -n 1 -t /tcardgen -f assets/font/ -o static/ogp/ -c assets/tcardgen.yaml
 
   - name: hugo
     image: cibuilds/hugo:0.83.0