diff --git a/README.md b/README.md
index 2adf97b..695b2dc 100644
--- a/README.md
+++ b/README.md
@@ -22,8 +22,7 @@ copy the **easylist.txt** to ~/.config/wyebadblock/
 
 wyebadblock only checks 'easylist.txt'
 
-Testing element hiding is not supported though,
-You can check whether it works on http://simple-adblock.com/faq/testing-your-adblocker/
+You can check whether wyebab has found easylist.txt by `wyebab --css`
 
 
 ## Addition for other webkit2gtk browsers
diff --git a/ab.c b/ab.c
index f6ddee7..943f5fa 100644
--- a/ab.c
+++ b/ab.c
@@ -214,6 +214,11 @@ int main(int argc, char **argv)
 	else if (!strcmp(argv[1], "-css") || !strcmp(argv[1], "--css"))
 	{
 		init();
+		if (!initt)
+		{
+			g_print("#There is no "LISTNAME"\n");
+			exit(0);
+		}
 		g_thread_join(initt);
 
 		g_print("%s", tester->blockcss->str);