diff --git a/helpers.go b/helpers.go
index 77907e6a..ee973f36 100644
--- a/helpers.go
+++ b/helpers.go
@@ -208,7 +208,7 @@ func setETag(c *Ctx, weak bool) {
 }
 
 func getGroupPath(prefix, path string) string {
-	if path == "/" {
+	if len(path) == 0 || path == "/" {
 		return prefix
 	}