diff --git a/Makefile b/Makefile
index 4e5fa72..e80e253 100644
--- a/Makefile
+++ b/Makefile
@@ -56,7 +56,7 @@ XTENSA_TOOLS_ROOT ?= $(abspath ../esp-open-sdk/xtensa-lx106-elf/bin)/
 
 # Base directory of the ESP8266 SDK package, absolute
 # Typically you'll download from Espressif's BBS, http://bbs.espressif.com/viewforum.php?f=5
-SDK_BASE	?= $(abspath ../esp_iot_sdk_v1.5.1)
+SDK_BASE	?= $(abspath ../esp-open-sdk/sdk)
 
 # Esptool.py path and port, only used for 1-time serial flashing
 # Typically you'll use https://github.com/themadinventor/esptool