diff --git a/src/gdb-stub/gdb_stub.cpp b/src/gdb-stub/gdb_stub.cpp
index ed8ea668..6f67cd0d 100644
--- a/src/gdb-stub/gdb_stub.cpp
+++ b/src/gdb-stub/gdb_stub.cpp
@@ -57,7 +57,7 @@ namespace gdb_stub
             {
                 connection.send_reply("l<target version=\"1.0\"><architecture>" //
                                       + handler.get_target_description()        //
-                                      + "<architecture>%s</architecture></target>");
+                                      + "</architecture></target>");
             }
             else
             {