diff --git a/packages/nuxt/src/core/templates.ts b/packages/nuxt/src/core/templates.ts
index 3410b6699f..3c7e83a243 100644
--- a/packages/nuxt/src/core/templates.ts
+++ b/packages/nuxt/src/core/templates.ts
@@ -96,6 +96,8 @@ export const serverPluginTemplate: NuxtTemplate = {
   },
 }
 
+const TS_RE = /\.[cm]?tsx?$/
+
 export const pluginsDeclaration: NuxtTemplate = {
   filename: 'types/plugins.d.ts',
   getContents: async ({ nuxt, app }) => {
@@ -124,9 +126,14 @@ export const pluginsDeclaration: NuxtTemplate = {
       }
 
       if (exists(pluginPath)) {
-        tsImports.push(relativePath.replace(EXTENSION_RE, ''))
-        continue
+        if (TS_RE.test(pluginPath)) {
+          tsImports.push(relativePath.replace(EXTENSION_RE, ''))
+          continue
+        }
+        tsImports.push(relativePath)
       }
+
+      // No declaration found that TypeScript can use
     }
 
     return `// Generated by Nuxt'