--- rpl/src/rpl.c	2010/08/31 09:51:30	1.47
+++ rpl/src/rpl.c	2010/09/02 07:51:48	1.48
@@ -419,7 +419,7 @@ rplinit(int argc, char *argv[], unsigned
 #	else
 	action.sa_handler = interruption1;
 #	endif
-	action.sa_flags = SA_ONSTACK | SA_SIGINFO - SA_NODEFER;
+	action.sa_flags = SA_ONSTACK | SA_SIGINFO | SA_NODEFER;
 
 	if (sigaction(SIGINT, &action, NULL) != 0)
 	{