diff --git a/README.mk b/README.mk
index c1374ed..ed57b12 100644
--- a/README.mk
+++ b/README.mk
@@ -6,7 +6,7 @@ dependencies
 ------------
 copy/link those dependencies to following directories:
 
- * [esp-open-sdk](https://github.com/pfalcon/esp-open-sdk) to ext/esp/esp-opensdk
+ * [esp-open-sdk](https://github.com/pfalcon/esp-open-sdk) to ext/esp/esp-open-sdk
  * [Sming](https://github.com/SmingHub/Sming) to ext/esp/Sming
  * [rboot](https://github.com/raburton/rboot) to ext/esp/rboot