diff --git a/10.1.c b/10.1.c
index c61636e..405a3b0 100644
--- a/10.1.c
+++ b/10.1.c
@@ -23,7 +23,7 @@ int main(void)
 static void sig_usr(int signo)
 {
     if (signo == SIGUSR1) {
-        printf("received SIGUSR1\n");
+        printf(... received SIGUSR1...\n");
     } else if (signo == SIGUSR2) {
         printf("received SIGUSR2");
     } else {