diff --git a/pkg/route/tree.go b/pkg/route/tree.go
index 64f3affc6..8b63c147c 100644
--- a/pkg/route/tree.go
+++ b/pkg/route/tree.go
@@ -303,9 +303,7 @@ func (r *router) insert(path string, h app.HandlersChain, t kind, ppath string,
 			if h != nil {
 				currentNode.handlers = h
 				currentNode.ppath = ppath
-				if len(currentNode.pnames) == 0 {
-					currentNode.pnames = pnames
-				}
+				currentNode.pnames = pnames
 			}
 		}
 		return
diff --git a/pkg/route/tree_test.go b/pkg/route/tree_test.go
index 946bfd626..084400549 100644
--- a/pkg/route/tree_test.go
+++ b/pkg/route/tree_test.go
@@ -706,3 +706,32 @@ func TestTreeFindCaseInsensitivePath(t *testing.T) {
 		}
 	}
 }
+
+func TestTreeParamNotOptimze(t *testing.T) {
+	tree := &router{method: "GET", root: &node{}, hasTsrHandler: make(map[string]bool)}
+	routes := [...]string{
+		"/:parama/start",
+		"/:paramb",
+	}
+	for _, route := range routes {
+		tree.addRoute(route, fakeHandler(route))
+	}
+	checkRequests(t, tree, testRequests{
+		{"/1", false, "/:paramb", param.Params{param.Param{Key: "paramb", Value: "1"}}},
+		{"/1/start", false, "/:parama/start", param.Params{param.Param{Key: "parama", Value: "1"}}},
+	})
+
+	// other sequence
+	tree = &router{method: "GET", root: &node{}, hasTsrHandler: make(map[string]bool)}
+	routes = [...]string{
+		"/:paramb",
+		"/:parama/start",
+	}
+	for _, route := range routes {
+		tree.addRoute(route, fakeHandler(route))
+	}
+	checkRequests(t, tree, testRequests{
+		{"/1/start", false, "/:parama/start", param.Params{param.Param{Key: "parama", Value: "1"}}},
+		{"/1", false, "/:paramb", param.Params{param.Param{Key: "paramb", Value: "1"}}},
+	})
+}