diff --git a/index.js b/index.js
index e03373cdeaff3d2d09f7dcf48beab0c5b7e221ac..7ce6d0616bf40aea1d8b9e4ec387bcff6e91281a 100644
--- a/index.js
+++ b/index.js
@@ -8,9 +8,6 @@ module.exports = function (registry) {
     // Remove default ports (80 for HTTP, 443 for HTTPS) to ensure consistency
     registry = new URL(registry).toString()
   } catch {}
-  if (
-    registry.endsWith('/') ||
-    registry.indexOf('/', registry.indexOf('//') + 2) != -1
-  ) return registry
+  if (registry.endsWith('/')) return registry
   return `${registry}/`
 }