diff --git a/main.cpp b/main.cpp
index 0560ef9..fc501d3 100644
--- a/main.cpp
+++ b/main.cpp
@@ -36,7 +36,12 @@ input_data(istream &tin, bool prompt){
 //
 
 
-int main() {
+int main(int argc, char* argv[]) {
+    if (argc > 1){
+        for (size_t i = 0; i < argc; i++)
+            cerr << "argv["<<i<<"]= " << argv[i] << endl;
+        return 0;
+    }
     curl_global_init(CURL_GLOBAL_ALL);
     Input in = input_data(cin, false);
     auto bins = make_histogramm(in.numbers, in.bin_count);