diff --git a/sllinux_def b/sllinux_def
index 0e22a767..0ebae7a9 100644
--- a/sllinux_def
+++ b/sllinux_def
@@ -12,4 +12,4 @@ MFLAGS=-f makefile_linux$(DUMMY)
 HDFROOT=/afs/psi.ch/project/sinq/sl6
 TCLINC=.
 
-DBG= -g
+DBG= -g -fstack-protector-all
diff --git a/statemon.c b/statemon.c
index 8a7a5364..63167f05 100644
--- a/statemon.c
+++ b/statemon.c
@@ -124,7 +124,7 @@ static int StateInterest(int iEvent, void *pEvent, void *pUser)
 /*--------------------------------------------------------------------------*/
 static pHdb recurseInterestNode(pHdb current, char *pDevice)
 {
-  char pSicsdev[131], pAlias[132];
+  char pSicsdev[132], pAlias[132];
   pHdb result = NULL;
   char *alias = NULL, *pPtr = NULL;