diff --git a/src/main.cpp b/src/main.cpp
index 91af22c..5eafcf4 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -98,6 +98,11 @@ int main(int argc, char *argv[]) {
     auto args = argparse::parse<Args>(argc, argv);
     srand(time(nullptr));
 
+    if (argc == 1) {
+        args.help();
+        return 0;
+    }
+
     if (args._stdin) {
         string line;
         while (getline(cin, line)) {