diff --git a/client_ipc.c b/client_ipc.c
index debf6f0..6048620 100644
--- a/client_ipc.c
+++ b/client_ipc.c
@@ -1,3 +1,5 @@
+// client ipc program
+
 #include<sys/types.h>
 #include<sys/ipc.h>
 #include<sys/msg.h>
@@ -26,4 +28,4 @@ int main()
 	msgrcv(msgid,&msg,256, pid,0);
 	printf("client: receive from pid%d\n", *pint);
 	return 0;
-}
\ No newline at end of file
+}