diff --git a/packages/nuxt/src/imports/module.ts b/packages/nuxt/src/imports/module.ts
index 3636c5a84d..39b28dd76c 100644
--- a/packages/nuxt/src/imports/module.ts
+++ b/packages/nuxt/src/imports/module.ts
@@ -145,6 +145,8 @@ function addDeclarationTemplates (ctx: Unimport, options: Partial<ImportsOptions
   const resolvedImportPathMap = new Map<string, string>()
   const r = ({ from }: Import) => resolvedImportPathMap.get(from)
 
+  const SUPPORTED_EXTENSION_RE = new RegExp(`\\.(${nuxt.options.extensions.map(i => i.replace('.', '')).join('|')})$`)
+
   async function cacheImportPaths (imports: Import[]) {
     const importSource = Array.from(new Set(imports.map(i => i.from)))
     await Promise.all(importSource.map(async (from) => {
@@ -164,7 +166,7 @@ function addDeclarationTemplates (ctx: Unimport, options: Partial<ImportsOptions
       }
 
       if (existsSync(path) && !(await isDirectory(path))) {
-        path = path.replace(/\.[a-z]+$/, '')
+        path = path.replace(SUPPORTED_EXTENSION_RE, '')
       }
 
       if (isAbsolute(path)) {