diff --git a/main.c b/main.c
index b5f69bd..f331734 100644
--- a/main.c
+++ b/main.c
@@ -1,5 +1,7 @@
-int main()
+#include <stdio.h>
+
+int main(void)
 {
-    printf("Halo, Welt!");
+    printf("Halo, Welt!\n");
     return 0;
 }