diff --git a/services/medialog/MediaLogService.cpp b/services/medialog/MediaLogService.cpp
index f85aa13..ab2f925 100644
--- a/services/medialog/MediaLogService.cpp
+++ b/services/medialog/MediaLogService.cpp
@@ -35,7 +35,7 @@
             shared->size() < NBLog::Timeline::sharedSize(size)) {
         return;
     }
-    sp<NBLog::Reader> reader(new NBLog::Reader(size, shared));
+    sp<NBLog::Reader> reader(new NBLog::Reader(shared, size));
     NamedReader namedReader(reader, name);
     Mutex::Autolock _l(mLock);
     mNamedReaders.add(namedReader);