diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 4073353..30ee462 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -227,7 +227,7 @@
 		.ctl_name	= KERN_CORE_PATTERN,
 		.procname	= "core_pattern",
 		.data		= core_pattern,
-		.maxlen		= 128,
+		.maxlen		= CORENAME_MAX_SIZE,
 		.mode		= 0644,
 		.proc_handler	= &proc_dostring,
 		.strategy	= &sysctl_string,