diff --git a/README.MD b/README.MD
index 433c1cb79..713460da8 100644
--- a/README.MD
+++ b/README.MD
@@ -5,7 +5,7 @@
 1. Python 3.5+: run `build.py` script
 2. Java Development Kit (JDK) 8: Compile Magisk Manager and sign zips
 3. Latest Android SDK: set `ANDROID_HOME` environment variable to the path to Android SDK
-4. Android NDK: Install NDK along with SDK (`$ANDROID_HOME/ndk-bundle`), or optionally specify a custom path `ANDROID_NDK`
+4. Android NDK: Install NDK along with SDK (`$ANDROID_HOME/ndk-bundle`), or optionally specify a custom path `ANDROID_NDK_HOME`
 5. (Windows Only) Python package Colorama: Install with `pip install colorama`, used for ANSI color codes
 
 ## Building Notes and Instructions
diff --git a/build.py b/build.py
index 08bfbbddf..b9f01ce24 100755
--- a/build.py
+++ b/build.py
@@ -36,8 +36,8 @@ import lzma
 import base64
 import tempfile
 
-if 'ANDROID_NDK' in os.environ:
-	ndk_build = os.path.join(os.environ['ANDROID_NDK'], 'ndk-build')
+if 'ANDROID_NDK_HOME' in os.environ:
+	ndk_build = os.path.join(os.environ['ANDROID_NDK_HOME'], 'ndk-build')
 else:
 	ndk_build = os.path.join(os.environ['ANDROID_HOME'], 'ndk-bundle', 'ndk-build')