diff --git a/src/main.cpp b/src/main.cpp
index a02da25..8f2d3ad 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -126,13 +126,17 @@ int main() {
             file.open(std::string("pastes/") + key, std::ios_base::out);
 
             if (!file.is_open()) {
+              free(key);
               return crow::response(crow::status::INTERNAL_SERVER_ERROR);
             }
 
             file << req.body;
             file.close();
 
-            return crow::response(base_url + key);
+            std::string res = base_url + key;
+            free(key);
+
+            return crow::response(res);
           });
 
   app.port(18080).multithreaded().run();