diff --git a/app/proguard.cfg b/app/proguard.cfg
index f85f4f1f..8f55fffd 100644
--- a/app/proguard.cfg
+++ b/app/proguard.cfg
@@ -5,7 +5,8 @@
 -repackageclasses ''
 -allowaccessmodification
 -optimizations !code/simplification/arithmetic
--keepattributes *Annotation*
+-renamesourcefileattribute SourceFile
+-keepattributes SourceFile,LineNumberTable,*Annotation*
 
 -keep public class * extends android.app.Activity
 -keep public class * extends android.app.Application