diff --git a/main.c b/main.c
index c32bbb8..d711a6a 100644
--- a/main.c
+++ b/main.c
@@ -1,11 +1,9 @@
-#include <stdio.h>
 #include <unistd.h>
 
 int main() {
   while (1) {
     sleep(20);
-    printf("*");
-    fflush(NULL);
+    write(1, "*", 1);
   }
   return 0;
 }