diff --git a/proguard.cfg b/proguard.cfg
index 9dc041628f..a7218672f6 100644
--- a/proguard.cfg
+++ b/proguard.cfg
@@ -7,3 +7,5 @@
     public void onEvent*(**);
 }
 
+# Protobuf lite
+-keep class * extends com.google.protobuf.GeneratedMessageLite { *; }