diff --git a/build.py b/build.py
index b60f50208..cd8d448aa 100755
--- a/build.py
+++ b/build.py
@@ -181,8 +181,8 @@ def sign_apk(source, target):
 	if not apksigner:
 		error('Cannot find apksigner.jar in Android SDK build tools')
 
-	proc = subprocess.run('java -jar {} sign --ks release-key.jks --ks-pass pass:{} --key-pass pass:{} {}'.format(
-		apksigner, config['keyStorePass'], config['keyPass'], target), shell=True)
+	proc = subprocess.run('java -jar {} sign --ks release-key.jks --ks-pass pass:{} --ks-key-alias {} --key-pass pass:{} {}'.format(
+		apksigner, config['keyStorePass'], config['keyAlias'], config['keyPass'], target), shell=True)
 	if proc.returncode != 0:
 		error('Release sign Magisk Manager failed!')
 
diff --git a/config.prop.sample b/config.prop.sample
index ce5c528d0..df7774643 100644
--- a/config.prop.sample
+++ b/config.prop.sample
@@ -9,5 +9,7 @@ outdir=out
 prettyName=false
 
 # These pwds are passed to apksigner for release-key.jks. Necessary when building release apks
+# keyPass is the pwd for the specified keyAlias
 keyStorePass=
+keyAlias=
 keyPass=