diff --git a/packages/activity_recognition_flutter/android/build.gradle b/packages/activity_recognition_flutter/android/build.gradle
index b2575a068..c1103af3a 100644
--- a/packages/activity_recognition_flutter/android/build.gradle
+++ b/packages/activity_recognition_flutter/android/build.gradle
@@ -30,6 +30,7 @@ android {
     lintOptions {
         disable 'InvalidPackage'
     }
+    namespace "dk.cachet.activity_recognition_flutter"
 }
 
 dependencies {
diff --git a/packages/app_usage/android/build.gradle b/packages/app_usage/android/build.gradle
index 894740210..31c2954b1 100644
--- a/packages/app_usage/android/build.gradle
+++ b/packages/app_usage/android/build.gradle
@@ -36,6 +36,7 @@ android {
     lintOptions {
         disable 'InvalidPackage'
     }
+    namespace "dk.cachet.app_usage"
 }
 
 dependencies {
diff --git a/packages/audio_streamer/android/build.gradle b/packages/audio_streamer/android/build.gradle
index fb3b1ddef..44a51299e 100644
--- a/packages/audio_streamer/android/build.gradle
+++ b/packages/audio_streamer/android/build.gradle
@@ -37,6 +37,7 @@ android {
     lintOptions {
         disable 'InvalidPackage'
     }
+    namespace "plugins.cachet.audio_streamer"
 }
 
 dependencies {
diff --git a/packages/empatica_e4link/android/build.gradle b/packages/empatica_e4link/android/build.gradle
index 9fb50a65b..295608a8d 100644
--- a/packages/empatica_e4link/android/build.gradle
+++ b/packages/empatica_e4link/android/build.gradle
@@ -41,6 +41,7 @@ android {
             minifyEnabled true
         }
     }
+    namespace "dk.cachet.empatica_e4link"
 }
 
 dependencies {
diff --git a/packages/esense_flutter/android/build.gradle b/packages/esense_flutter/android/build.gradle
index abd4cf98a..fb6ca09c3 100644
--- a/packages/esense_flutter/android/build.gradle
+++ b/packages/esense_flutter/android/build.gradle
@@ -32,4 +32,5 @@ android {
     defaultConfig {
         minSdkVersion 16
     }
+    namespace "dk.cachet.esense_flutter"
 }
diff --git a/packages/flutter_foreground_service/android/build.gradle b/packages/flutter_foreground_service/android/build.gradle
index f1340a1f7..a56cf3c24 100644
--- a/packages/flutter_foreground_service/android/build.gradle
+++ b/packages/flutter_foreground_service/android/build.gradle
@@ -36,6 +36,7 @@ android {
     lintOptions {
         disable 'InvalidPackage'
     }
+    namespace "dk.cachet.flutter_foreground_service"
 }
 
 dependencies {
diff --git a/packages/health/android/build.gradle b/packages/health/android/build.gradle
index c8f9e4e0e..088fd3957 100644
--- a/packages/health/android/build.gradle
+++ b/packages/health/android/build.gradle
@@ -38,6 +38,7 @@ android {
     lintOptions {
         disable 'InvalidPackage'
     }
+    namespace "cachet.plugins.health"
 }
 
 dependencies {
diff --git a/packages/light/android/build.gradle b/packages/light/android/build.gradle
index 99f377894..0d2c15b97 100644
--- a/packages/light/android/build.gradle
+++ b/packages/light/android/build.gradle
@@ -49,4 +49,5 @@ android {
     lintOptions {
         disable 'InvalidPackage'
     }
+    namespace "dk.cachet.light"
 }
diff --git a/packages/notifications/android/build.gradle b/packages/notifications/android/build.gradle
index d06333bdc..89839f7b6 100644
--- a/packages/notifications/android/build.gradle
+++ b/packages/notifications/android/build.gradle
@@ -27,4 +27,5 @@ android {
     defaultConfig {
         minSdkVersion 16
     }
+    namespace "dk.cachet.notifications"
 }
diff --git a/packages/pedometer/android/build.gradle b/packages/pedometer/android/build.gradle
index f93b5555f..2da067a5c 100644
--- a/packages/pedometer/android/build.gradle
+++ b/packages/pedometer/android/build.gradle
@@ -47,6 +47,7 @@ android {
     lintOptions {
         disable 'InvalidPackage'
     }
+    namespace "com.example.pedometer"
 }
 
 dependencies {
diff --git a/packages/screen_state/android/build.gradle b/packages/screen_state/android/build.gradle
index d7a23c725..10bdb080c 100644
--- a/packages/screen_state/android/build.gradle
+++ b/packages/screen_state/android/build.gradle
@@ -36,6 +36,7 @@ android {
     lintOptions {
         disable 'InvalidPackage'
     }
+    namespace "dk.cachet.screen_state"
 }
 
 dependencies {