diff --git a/src/http.cpp b/src/http.cpp
index 23cdf2b..49a3075 100644
--- a/src/http.cpp
+++ b/src/http.cpp
@@ -26,7 +26,7 @@ using namespace http;
 const Request http::parse_request(const string &request)
 {
     if (request.substr(0, 8) != "/avatar/" ||
-        request.find('/', 8) != std::string::npos)
+        request.find("..", 8) != std::string::npos)
     {
         cout << "Status: 404 Not Found\n\n";
         cerr << "Error: Invalid URL.\n";