diff --git a/app/build.gradle b/app/build.gradle
index ec6d8db..36255b9 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -39,7 +39,9 @@ android {
         release {
             minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-            signingConfig signingConfigs.release
+            if (keystorePropertiesFile.exists()) {
+                signingConfig signingConfigs.release
+            }
         }
     }