diff --git a/.npmrc b/.npmrc
index ae90f70..7969496 100644
--- a/.npmrc
+++ b/.npmrc
@@ -1 +1,2 @@
 ignore-workspace-root-check=true
+shell-emulator=true
diff --git a/package.json b/package.json
index 6ced9a2..b87484d 100644
--- a/package.json
+++ b/package.json
@@ -49,8 +49,8 @@
     }
   },
   "scripts": {
-    "build": "tsup src/index.ts --external vscode",
-    "dev": "nr build --watch",
+    "build": "NODE_ENV=production tsup src/index.ts --external vscode",
+    "dev": "NODE_ENV=dev nr build --watch",
     "lint": "eslint .",
     "vscode:prepublish": "nr build",
     "publish": "vsce publish --no-dependencies",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9430c62..3572eac 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1599,6 +1599,7 @@ packages:
 
   /emoji-regex@8.0.0:
     resolution: {integrity: sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==}
+    requiresBuild: true
     dev: true
 
   /emoji-regex@9.2.2:
@@ -2593,6 +2594,7 @@ packages:
   /is-fullwidth-code-point@3.0.0:
     resolution: {integrity: sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==}
     engines: {node: '>=8'}
+    requiresBuild: true
     dev: true
 
   /is-glob@4.0.3:
diff --git a/src/index.ts b/src/index.ts
index 9813006..756b0d1 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -83,10 +83,10 @@ export function activate() {
         await commands.executeCommand('editor.action.goToDeclaration')
       }
 
-      const tab = window.tabGroups.activeTabGroup.activeTab
+      const { activeTab } = window.tabGroups.activeTabGroup
       const isNeedCloseDts = workspace.getConfiguration(`${extName}`).get('closeDts')
-      if (isNeedCloseDts && tab && tab !== window.tabGroups.activeTabGroup.activeTab)
-        await window.tabGroups.close(tab)
+      if (isNeedCloseDts && activeTab?.label.endsWith('.d.ts'))
+        await window.tabGroups.close(activeTab)
     }
 
     await fn()
diff --git a/tsup.config.ts b/tsup.config.ts
index 747332d..1d19f33 100644
--- a/tsup.config.ts
+++ b/tsup.config.ts
@@ -1,3 +1,4 @@
+import process from 'node:process'
 import { defineConfig } from 'tsup'
 
 export default defineConfig({
@@ -7,6 +8,7 @@ export default defineConfig({
   format: ['cjs'],
   shims: false,
   dts: false,
+  sourcemap: process.env.NODE_ENV === 'development',
   external: [
     'vscode',
   ],