diff --git a/occ_maintenance.sh b/occ_maintenance.sh
index b35536b..91e63fe 100755
--- a/occ_maintenance.sh
+++ b/occ_maintenance.sh
@@ -192,7 +192,7 @@ fi
 # - Jobhandling 
 # ----------
 
-if pgrep -f "$(basename $0)" | grep -v $$ ; then 
+if pgrep -f "$(basename $0)" | grep -q -v $$ ; then 
 
    msg="A previos instance of script \"`basename $0`\" seems already be running."