diff --git a/TWOPO.cpp b/TWOPO.cpp
index f5e0150..7189edf 100644
--- a/TWOPO.cpp
+++ b/TWOPO.cpp
@@ -53,6 +53,10 @@ int main(int argc, char* argv[]) {
         curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
         res = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
+        if(res != 0){
+            cerr << curl_easy_strerror(res);
+            exit(1);
+        }
       }
         return 0;
     }