diff --git a/android/build.gradle b/android/build.gradle
index 2feed78f..09d5ada9 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -22,6 +22,7 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
+    namespace "flutter.plugins.contactsservice.contactsservice"
     compileSdkVersion 30
 
     defaultConfig {