diff --git a/gold/ChangeLog b/gold/ChangeLog
index 3ab58cd41e..3567034e37 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,9 @@
+2011-04-20 Cary Coutant  <ccoutant@google.com>
+
+	PR gold/12689
+	* archive.h (Incremental_archive_entry::Archive_member):
+	Initialize arg_serial_ (second constructor).
+
 2011-04-17  Ian Lance Taylor  <iant@google.com>
 
 	* object.cc (Relocate_info::location): Simplify location string.
diff --git a/gold/archive.h b/gold/archive.h
index 7e3182737d..78c2cc8979 100644
--- a/gold/archive.h
+++ b/gold/archive.h
@@ -51,7 +51,7 @@ struct Archive_member
       : obj_(NULL), sd_(NULL), arg_serial_(0)
   { }
   Archive_member(Object* obj, Read_symbols_data* sd)
-      : obj_(obj), sd_(sd)
+      : obj_(obj), sd_(sd), arg_serial_(0)
   { }
   // The object file.
   Object* obj_;