diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 74c093891..5d74551b7 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -7,5 +7,6 @@
 	public static void checkParameterIsNotNull(...);
 	public static void checkNotNullParameter(...);
 }
+-keep public class ** extends org.koitharu.kotatsu.base.ui.BaseFragment
 -keep class org.koitharu.kotatsu.core.db.entity.* { *; }
 -dontwarn okhttp3.internal.platform.ConscryptPlatform
\ No newline at end of file