diff --git a/src/bin/tools/jar.ts b/src/bin/tools/jar.ts
index 76fbba57..1ee53da9 100644
--- a/src/bin/tools/jar.ts
+++ b/src/bin/tools/jar.ts
@@ -57,9 +57,9 @@ export default async function jar({ groupId, artifactId, version, rootPath, targ
     const pathToRecord = () =>
         new Transform({
             objectMode: true,
-            transform: function (path, _, cb) {
-                const filename = relative(rootPath, path).split(sep).join("/");
-                this.push({ filename, path });
+            transform: function (fsPath, _, cb) {
+                const path = relative(rootPath, fsPath).split(sep).join("/");
+                this.push({ path, fsPath });
                 cb();
             },
             final: function () {
diff --git a/src/bin/tools/zip.ts b/src/bin/tools/zip.ts
index 737ba4c2..5a2ad9be 100644
--- a/src/bin/tools/zip.ts
+++ b/src/bin/tools/zip.ts
@@ -216,7 +216,7 @@ export default function zip() {
     const writeRecord = async (source: ZipSource) => {
         if ("fsPath" in source) await writeFromPath(source.path, source.fsPath);
         else if ("data" in source) await writeFromBuffer(source.path, source.data);
-        else throw new Error("Illegal argument " + typeof source + "  " + source);
+        else throw new Error("Illegal argument " + typeof source + "  " + JSON.stringify(source));
     };
 
     /**