diff --git a/Source/Android/app/build.gradle b/Source/Android/app/build.gradle
index b19c3cec62..72779c3fb5 100644
--- a/Source/Android/app/build.gradle
+++ b/Source/Android/app/build.gradle
@@ -48,7 +48,9 @@ android {
     buildTypes {
         // Signed by release key, allowing for upload to Play Store.
         release {
-            signingConfig signingConfigs.release
+            if (project.hasProperty('keystore')) {
+                signingConfig signingConfigs.release
+            }
 
             minifyEnabled true
             shrinkResources true