diff --git a/httpr.go b/httpr.go
index 2a4d2bf..4558075 100644
--- a/httpr.go
+++ b/httpr.go
@@ -212,28 +212,25 @@ func (rr *Router) ServeStatic(path string, root http.FileSystem) error {
 // passed by a Handler() func.
 type subPath struct {
 	r    *Router
-	root string
+	base string
 }
 
 // Sub returns a sub-path with a root path, after that you can shorten patterns.
 //
-// E.g. instead of writing each time "/api/something/other" create a
-// sub-router with a root path "/api/something" and then pass just "/other" in
-// a Handler() func of subPath struct.
-func (rr *Router) Sub(root string) *subPath {
-	if root[len(root)-1] == '/' {
-		root = root[:len(root)-1]
+func (rr *Router) Sub(base string) *subPath {
+	if base[len(base)-1] == '/' {
+		base = base[:len(base)-1]
 	}
 
 	return &subPath{
 		r:    rr,
-		root: root,
+		base: base,
 	}
 }
 
 // Handler attaches root path to a given pattern and pass it to a router.
 func (sp *subPath) Handler(method, pattern string, handler http.HandlerFunc) error {
-	return sp.r.Handler(method, sp.root+pattern, handler)
+	return sp.r.Handler(method, sp.base+pattern, handler)
 }
 
 // Param returns a URL parameter (that is set like `/a/b/:key/d`) with a key