diff --git a/repos/base/include/base/trace/buffer.h b/repos/base/include/base/trace/buffer.h
index 0dfb38b6d9..25d7c875f1 100644
--- a/repos/base/include/base/trace/buffer.h
+++ b/repos/base/include/base/trace/buffer.h
@@ -170,7 +170,7 @@ class Genode::Trace::Buffer
 			if (entry.length() == 0)
 				return Entry(0);
 
-			addr_t const offset = (addr_t)entry._entry - (addr_t)_entries;
+			addr_t const offset = (addr_t)entry.data() - (addr_t)_entries;
 			if (offset + entry.length() + sizeof(_Entry) > _size)
 				return Entry(0);