diff --git a/src/service/toks_service_start.c b/src/service/toks_service_start.c
index bc3bc96..4b1c719 100644
--- a/src/service/toks_service_start.c
+++ b/src/service/toks_service_start.c
@@ -82,11 +82,11 @@ static int toks_spawn_impl(
 
 	if (ctrlpid) {
 		ntapi->sprintf(pidbuf,"%d",ctrlpid);
-		*pearg++ = "-p";
+		*pearg++ = "-l";
 		*pearg++ = pidbuf;
 	} else if (csyspid) {
 		ntapi->sprintf(pidbuf,"%d",csyspid);
-		*pearg++ = "-P";
+		*pearg++ = "-L";
 		*pearg++ = pidbuf;
 	}