diff --git a/Makefile b/Makefile
index 1f8c701..546ee64 100644
--- a/Makefile
+++ b/Makefile
@@ -4,3 +4,5 @@ all:
 install: all
 	./gradlew installDebug
 
+clean:
+	./gradlew build
diff --git a/app/build.gradle b/app/build.gradle
index e32edc2..1208b6a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -13,7 +13,7 @@ apply plugin: 'android-sdk-manager'
 apply plugin: 'com.android.application'
 
 repositories {
-    maven { url "http://dl.bintray.com/crankycoder/libMozStumbler" }
+    jcenter()
 }
 
 android {