diff --git a/package/base-files/files/etc/sysctl.conf b/package/base-files/files/etc/sysctl.conf
index 2ea1f1a8e3..7b642fa7ba 100644
--- a/package/base-files/files/etc/sysctl.conf
+++ b/package/base-files/files/etc/sysctl.conf
@@ -1,5 +1,5 @@
 kernel.panic=3
-kernel.core.pattern=/tmp/%e.%t.%p.%s.core
+kernel.core_pattern=/tmp/%e.%t.%p.%s.core
 
 net.ipv4.conf.default.arp_ignore=1
 net.ipv4.conf.all.arp_ignore=1