diff --git a/mastodon/build.gradle b/mastodon/build.gradle
index 156ebbae8..39eac9cad 100644
--- a/mastodon/build.gradle
+++ b/mastodon/build.gradle
@@ -25,7 +25,7 @@ android {
 				keystoreFile.renameTo("keystore/nightly_keystore.jks")
 			}
 
-			storeFile = keystore/nightly_keystore.jks
+			storeFile = file("keystore/nightly_keystore.jks")
 			storePassword System.getenv("SIGNING_STORE_PASSWORD")
 			keyAlias System.getenv("SIGNING_KEY_ALIAS")
 			keyPassword System.getenv("SIGNING_KEY_PASSWORD")
@@ -47,6 +47,7 @@ android {
 			initWith release
 		}
 		nightly{
+			initWith release
 			versionNameSuffix '-nightly'
 			applicationIdSuffix '.nightly'
 			signingConfig signingConfigs.nightly