diff --git a/packaging/tools/set_core.sh b/packaging/tools/set_core.sh
old mode 100644
new mode 100755
index 7586d531d116206b0198155caf25d53174bc07fd..05404d7a64ad3116d1998f8c6b02696297682a20
--- a/packaging/tools/set_core.sh
+++ b/packaging/tools/set_core.sh
@@ -11,7 +11,9 @@ if command -v sudo > /dev/null; then
 fi
 
 #ulimit -c unlimited
-${csudo} echo "ulimit -c unlimited" >> /etc/profile
+${csudo} sed -i '/ulimit -c unlimited/d' /etc/profile
+${csudo} sed -i '$a\ulimit -c unlimited' /etc/profile
+#${csudo} echo "ulimit -c unlimited" >> /etc/profile
 source /etc/profile
 
 ${csudo} mkdir -p /coredump