diff --git a/hello.c b/hello.c
index 1b70430..ee35b3e 100644
--- a/hello.c
+++ b/hello.c
@@ -1,6 +1,6 @@
 #include<stdio.h>
 int main(int argc, char* argv[])
 {
-	printf("hello, %s\n", argv[1]);
+	printf("hello, %s.\n", argv[1]);
 	return 0;
 }