diff --git a/routergroup.go b/routergroup.go
index c833fe8f..12de23aa 100644
--- a/routergroup.go
+++ b/routergroup.go
@@ -224,7 +224,7 @@ func (group *RouterGroup) createStaticHandler(relativePath string, fs http.FileS
 
 		file := c.Param("filepath")
 		// Check if file exists and/or if we have permission to access it
-		f, err := fs.Open(file)
+		f, err := fs.Open(path.Clean(file))
 		if err != nil {
 			c.Writer.WriteHeader(http.StatusNotFound)
 			c.handlers = group.engine.noRoute