diff --git a/build/autoconf/lustre-build.m4 b/build/autoconf/lustre-build.m4
index bf770e14bb9bbe972dabcf9224d948a68e2987e0..c0cd70d3a9deeb851dd668aaaf6e6164143c3f83 100644
--- a/build/autoconf/lustre-build.m4
+++ b/build/autoconf/lustre-build.m4
@@ -523,8 +523,6 @@ LC_CONFIG_CLIENT_SERVER
 # three macros for cmd3 
 LC_CONFIG_SPLIT
 LC_CONFIG_LDISKFS
-LC_CONFIG_CDEBUG
-
 LB_CONFIG_MODULES
 
 LC_CONFIG_LIBLUSTRE
diff --git a/lnet/autoconf/lustre-lnet.m4 b/lnet/autoconf/lustre-lnet.m4
index 5ffe7f91d2feff976e905aa15e4013922b9d02f1..b1950ec08d6fcb6d5427ceee175eefea9415ef80 100644
--- a/lnet/autoconf/lustre-lnet.m4
+++ b/lnet/autoconf/lustre-lnet.m4
@@ -42,11 +42,11 @@ fi
 ])
 
 #
-# LC_CONFIG_CDEBUG
+# LN_CONFIG_CDEBUG
 #
 # whether to enable various libcfs debugs (CDEBUG, ENTRY/EXIT, LASSERT, etc.)
 #
-AC_DEFUN([LC_CONFIG_CDEBUG],
+AC_DEFUN([LN_CONFIG_CDEBUG],
 [
 AC_MSG_CHECKING([whether to enable CDEBUG, CWARN])
 AC_ARG_ENABLE([libcfs_cdebug],
@@ -1092,7 +1092,7 @@ LB_LINUX_TRY_COMPILE([
 #
 AC_DEFUN([LN_PROG_LINUX],
 [
-LC_CONFIG_CDEBUG
+LN_CONFIG_CDEBUG
 LN_FUNC_CPU_ONLINE
 LN_TYPE_GFP_T
 LN_TYPE_CPUMASK_T