diff --git a/build.gradle b/build.gradle
index c36547256..ee5b7e6cd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -32,6 +32,14 @@ android {
         testApplicationId 'com.android.inputmethod.latin.tests'
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = false
+
+        signingConfig signingConfigs.debug
+    }
+
+    signingConfigs {
+        debug {
+            storeFile file("java/shared.keystore")
+        }
     }
 
     buildTypes {
diff --git a/java/shared.keystore b/java/shared.keystore
new file mode 100644
index 000000000..9c2f1bdc2
Binary files /dev/null and b/java/shared.keystore differ