diff --git a/include/proto/mworker.h b/include/proto/mworker.h
index 02a10de..bf8317f 100644
--- a/include/proto/mworker.h
+++ b/include/proto/mworker.h
@@ -33,5 +33,7 @@
 
 int mworker_child_nb();
 
+int mworker_ext_launch_all();
+
 
 #endif /* PROTO_MWORKER_H_ */