diff --git a/cs-lab34.cpp b/cs-lab34.cpp
index 0e67366..9c5782f 100644
--- a/cs-lab34.cpp
+++ b/cs-lab34.cpp
@@ -30,6 +30,10 @@ main(int argc, char* argv[]) {
             CURLcode res;
             curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
             res = curl_easy_perform(curl);
+            if (res != 0) {
+                cout << curl_easy_strerror(res);
+                exit(1);
+            }
             curl_easy_cleanup(curl);
         }
         return 0;