diff --git a/db/log_reader.h b/db/log_reader.h
index 75d53f7..ba711f8 100644
--- a/db/log_reader.h
+++ b/db/log_reader.h
@@ -24,7 +24,7 @@ class Reader {
    public:
     virtual ~Reporter();
 
-    // Some corruption was detected.  "size" is the approximate number
+    // Some corruption was detected.  "bytes" is the approximate number
     // of bytes dropped due to the corruption.
     virtual void Corruption(size_t bytes, const Status& status) = 0;
   };