diff --git a/astrid/proguard.cfg b/astrid/proguard.cfg
index 0c356dda3..94012573f 100644
--- a/astrid/proguard.cfg
+++ b/astrid/proguard.cfg
@@ -12,6 +12,7 @@
 -keep class com.mdimension.**
 -keep class com.google.common.base.Preconditions
 -keep class * extends com.todoroo.andlib.data.AbstractModel
+-keep class com.todoroo.astrid.data.*
 -keep class com.todoroo.astrid.helper.AmazonRequestsHelper
 -keep class android.support.v4.**
 -keep class com.google.gson.stream.JsonReader {