diff --git a/scripts/gen_thumbnails.sh b/scripts/gen_thumbnails.sh
index 15d12a4b..7502d333 100755
--- a/scripts/gen_thumbnails.sh
+++ b/scripts/gen_thumbnails.sh
@@ -9,6 +9,7 @@ THUMB_HEIGHT=10000 # height: auto;
 thumbnail() {
 	echo "convert \"$1\" -thumbnail ${THUMB_WIDTH}x${THUMB_HEIGHT} \"${1%.*}-thumb.jpg\""
 	convert "$1" -thumbnail ${THUMB_WIDTH}x${THUMB_HEIGHT} "${1%.*}-thumb.jpg"
+	git add "$1" "${1%.*}-thumb.jpg" "$STATIC_DIR"samples.sha256
 }
 
 [ ! -f "$STATIC_DIR"samples.sha256 ] && touch "$STATIC_DIR"samples.sha256