diff --git a/library/proguard.flags b/library/proguard.flags
new file mode 100644
index 0000000..c3a49d5
--- /dev/null
+++ b/library/proguard.flags
@@ -0,0 +1,8 @@
+#########################################
+## Keep rules
+#########################################
+
+# Allow inflating ItemHierarchies from XML
+-keep public class * extends com.android.setupwizardlib.items.ItemHierarchy {
+    public <init>(android.content.Context, android.util.AttributeSet);
+}