diff --git a/hello/hello.c b/hello/hello.c
index 367fff1..3841541 100644
--- a/hello/hello.c
+++ b/hello/hello.c
@@ -1,7 +1,9 @@
-#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
 
 int main(int argc, const char **argv) {
-	puts("Hello, world!\n");
+	const message = "Hello, world!\n";
+	write(STDIN_FILENO, message, strlen(message));
 	return 0;
 }