diff --git a/src/utils.ts b/src/utils.ts
index 2305ecd..3dedbdb 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -31,7 +31,7 @@ export function resolveAlias (path: string, aliases: Record<string, string>) {
   const _path = normalizeWindowsPath(path)
   aliases = normalizeAliases(aliases)
   for (const alias in aliases) {
-    if (_path.startsWith(alias)) {
+    if (_path.startsWith(alias) && pathSeparators.includes(_path[alias.length])) {
       return join(aliases[alias], _path.slice(alias.length))
     }
   }
diff --git a/test/utils.spec.ts b/test/utils.spec.ts
index d97fd23..222e514 100644
--- a/test/utils.spec.ts
+++ b/test/utils.spec.ts
@@ -30,6 +30,13 @@ describe('alias', () => {
         expect(resolveAlias(from, aliases)).toBe(to)
       })
     }
+    it('respects path separators', () => {
+      const aliases = {
+        '~': '/root',
+        '~assets': '/root/some/dir'
+      }
+      expect(resolveAlias('~assets/smth.jpg', aliases)).toMatchInlineSnapshot('"/root/some/dir/smth.jpg"')
+    })
     it('unchanged', () => {
       expect(resolveAlias('foo/bar.js', aliases)).toBe('foo/bar.js')
       expect(resolveAlias('./bar.js', aliases)).toBe('./bar.js')
@@ -39,7 +46,7 @@ describe('alias', () => {
 
 describe('filename', () => {
   const files = {
-  // POSIX
+    // POSIX
     'test.html': 'test',
     '/temp/myfile.html': 'myfile',
     './myfile.html': 'myfile',