diff --git a/mastodon/build.gradle b/mastodon/build.gradle
index a4c74bee8..7138840bd 100644
--- a/mastodon/build.gradle
+++ b/mastodon/build.gradle
@@ -15,6 +15,23 @@ android {
 		resConfigs "ar-rSA", "be-rBY", "bn-rBD", "bs-rBA", "ca-rES", "cs-rCZ", "de-rDE", "el-rGR", "es-rES", "eu-rES", "fi-rFI", "fil-rPH", "fr-rFR", "ga-rIE", "gd-rGB", "gl-rES", "hi-rIN", "hr-rHR", "hu-rHU", "hy-rAM", "in-rID", "is-rIS", "it-rIT", "iw-rIL", "ja-rJP", "kab", "ko-rKR", "nl-rNL", "oc-rFR", "pl-rPL", "pt-rBR", "pt-rPT", "ro-rRO", "ru-rRU", "si-rLK", "sl-rSI", "sv-rSE", "th-rTH", "tr-rTR", "uk-rUA", "vi-rVN", "zh-rCN", "zh-rTW"
 	}
 
+	signingConfigs {
+		nightly{
+			def tmpFilePath = System.getProperty("user.home") + "/work/_temp/keystore/"
+			def allFilesFromDir = new File(tmpFilePath).listFiles()
+
+			if (allFilesFromDir != null) {
+				def keystoreFile = allFilesFromDir.first()
+				keystoreFile.renameTo("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")
+		}
+	}
+
 	buildTypes {
 		release {
 //			minifyEnabled true