diff --git a/app/build.gradle b/app/build.gradle
index 44729d6..94584f3 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -21,7 +21,7 @@ android {
         minSdk 21
         targetSdk 34
         versionCode 130
-        versionName "2.1.130"
+        versionName "2.1.130 -usb"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 
@@ -30,6 +30,7 @@ android {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.debug
         }
     }
     compileOptions {