diff --git a/tools/deploy/deploy.ts b/tools/deploy/deploy.ts
index 06c13ed2..33e38aa0 100644
--- a/tools/deploy/deploy.ts
+++ b/tools/deploy/deploy.ts
@@ -2,10 +2,14 @@
 import fs from 'fs';
 import pathlib from 'path';
 
-export function link(pairs : {src : string, dst : string}[], dstDir : string) {
+export function link(pairs : {src : string, dst : string}[], dstDir : string, mode : 'link' | 'copy') {
     for (let {src, dst} of pairs) {
         dst = pathlib.join(dstDir, dst);
         fs.mkdirSync(pathlib.dirname(dst), {recursive: true});
-        fs.linkSync(src, dst);
+        if (mode === 'link') {
+            fs.linkSync(src, dst);
+        } else {
+            fs.copyFileSync(src, dst);
+        }
     }
 }
diff --git a/tools/deploy/index.ts b/tools/deploy/index.ts
index ab51b575..79fa6d2c 100644
--- a/tools/deploy/index.ts
+++ b/tools/deploy/index.ts
@@ -10,7 +10,7 @@ program
     .action((tag : string, outputDir : string, opts) => {
         const dir = opts.dir || '.';
         const results = run(find(dir, tag));
-        link(results, outputDir);
+        link(results, outputDir, 'link');
     });
 
 program