diff --git a/Checkpoint.h b/Checkpoint.h
index d077d19..63ead83 100644
--- a/Checkpoint.h
+++ b/Checkpoint.h
@@ -33,7 +33,7 @@
 
 android::binder::Status cp_commitChanges();
 
-android::binder::Status cp_abortChanges();
+void cp_abortChanges(const std::string& message, bool retry);
 
 bool cp_needsRollback();