diff --git a/include/proto/mworker.h b/include/proto/mworker.h
index 3b3e280..02a10de 100644
--- a/include/proto/mworker.h
+++ b/include/proto/mworker.h
@@ -31,6 +31,7 @@
 
 void mworker_cleanlisteners();
 
-extern int *children; /* store PIDs of children in master workers mode */
+int mworker_child_nb();
+
 
 #endif /* PROTO_MWORKER_H_ */