diff --git a/.gitignore b/.gitignore
index 6e742d408..d4903762d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,8 +14,14 @@ npm-debug.log
 package-lock.json
 /vendor/
 
-/js/battle.js
-/js/
+/js/server/
+/js/*.js.map
+/js/battle*.js
+/js/panel*.js
+/js/replay-embed.js
+/js/client-main.js
+/js/client-core.js
+/js/client-connection.js
 
 /replays/caches/
 /replays/replay-config.inc.php
diff --git a/build-tools/compiler.js b/build-tools/compiler.js
index 998c5f97f..9a1c66424 100644
--- a/build-tools/compiler.js
+++ b/build-tools/compiler.js
@@ -127,6 +127,7 @@ function compileToDir(srcDir, destDir, opts = {}) {
     if (!relative.endsWith('.ts') && !relative.endsWith('.tsx')) {
       return 0;
     }
+    if (relative.endsWith('.d.ts')) return 0;
 
     relative = relative.slice(0, relative.endsWith('.tsx') ? -4 : -3) + '.js';