diff --git a/server/upstream/upstream.go b/server/upstream/upstream.go
index d610665..3e083bc 100644
--- a/server/upstream/upstream.go
+++ b/server/upstream/upstream.go
@@ -82,7 +82,7 @@ func (o *Options) Upstream(ctx *fasthttp.RequestCtx, giteaRoot, giteaAPIToken st
 	log.Debug().Msg("preparations")
 
 	// Make a GET request to the upstream URL
-	uri := o.TargetOwner + "/" + o.TargetRepo + "/raw/" + o.TargetBranch + "/" + o.TargetPath
+	uri := path.Join(o.TargetOwner, o.TargetRepo, "raw", o.TargetBranch, o.TargetPath)
 	var req *fasthttp.Request
 	var res *fasthttp.Response
 	var cachedResponse fileResponse
@@ -91,7 +91,7 @@ func (o *Options) Upstream(ctx *fasthttp.RequestCtx, giteaRoot, giteaAPIToken st
 		cachedResponse = cachedValue.(fileResponse)
 	} else {
 		req = fasthttp.AcquireRequest()
-		req.SetRequestURI(giteaRoot + giteaApiRepos + uri)
+		req.SetRequestURI(path.Join(giteaRoot, giteaApiRepos, uri))
 		req.Header.Set(fasthttp.HeaderAuthorization, giteaAPIToken)
 		res = fasthttp.AcquireResponse()
 		res.SetBodyStream(&strings.Reader{}, -1)