diff --git a/metadata/de.ph1b.audiobook.txt b/metadata/de.ph1b.audiobook.txt
index ad17b8881c..08f50a125f 100644
--- a/metadata/de.ph1b.audiobook.txt
+++ b/metadata/de.ph1b.audiobook.txt
@@ -646,6 +646,7 @@ Build:3.6.1,212
     prebuild=sed -i -e '/fabric/d' -e '/crashlytics/,+2d' ../build.gradle build.gradle
 
 Build:3.6.2,213
+    disable=ProGuard fails: there were 13 unresolved references to classes or interfaces
     commit=v3.6.2
     subdir=app
     gradle=opensource