diff --git a/flirc_1_button/readme.md b/flirc_1_button/readme.md
index 9ac5eeb..304d8aa 100644
--- a/flirc_1_button/readme.md
+++ b/flirc_1_button/readme.md
@@ -2,7 +2,7 @@
 
 More information in blog:
 
-https://www.40percent.club/2019/09/flirc_1_button
+https://www.40percent.club/2019/09/flirc-1-button.html
 
 
 EasyEDA ordering info: