diff --git a/app/build.gradle b/app/build.gradle
index 0af108aa..1674344c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -13,7 +13,7 @@ android {
         release {
             keyAlias=System.getenv('SIGNING_KEY_ALIAS')
             keyPassword=System.getenv('SIGNING_KEY_PASSWORD')
-            storeFile=file(System.getenv('SIGNING_STORE_FILE'))
+            storeFile=System.getenv('SIGNING_STORE_FILE') ? file(System.getenv('SIGNING_STORE_FILE')) : null
             storePassword=System.getenv('SIGNING_STORE_PASSWORD')
         }
     }