diff --git a/gen.sh b/gen.sh
index 5704ba3..cac39d9 100755
--- a/gen.sh
+++ b/gen.sh
@@ -1,15 +1,7 @@
 #!/bin/sh
 
-IDS=`find . -type f -iname '*.png' -exec sh -c 'x=${0#./}; printf "%s|" ${x%.svg.png}' {} \;`
-FILES=`find . -type f -iname '*.png' -exec sh -c 'printf "%s|" ${0#./}' {} \;`
+FILELIST=`find . -type f -iname '*.png' -exec sh -c 'x=${0#./}; printf "%s:%s|" ${x%.svg.png} $x' {} \;`
 
-FILELIST="${IDS%|}
-${FILES%|}"
-
-jq -Rn '
-( input  | split("|") ) as $keys |
-( inputs | split("|") ) as $vals |
-[[$keys, $vals] | transpose[] | {key:.[0],value:.[1]}] | from_entries
-' <<<"$FILELIST">blobfox.json
+jq -Rn 'input | split("|") | map(split(":") | { key: .[0], value: .[1] }) | from_entries' <<<"${FILELIST%|}">blobfox.json
 
 zip blobfox.zip *.png