diff --git a/OpenKeychain/proguard-rules-base.pro b/OpenKeychain/proguard-rules-base.pro
index 977308e4e..03ab06db7 100644
--- a/OpenKeychain/proguard-rules-base.pro
+++ b/OpenKeychain/proguard-rules-base.pro
@@ -10,3 +10,6 @@
 -keepattributes **
 
 -keep class org.sufficientlysecure.keychain.** { *; }
+
+# fix bug, see https://github.com/BelooS/ChipsLayoutManager/issues/31
+-dontwarn com.beloo.widget.chipslayoutmanager.Orientation
\ No newline at end of file