diff --git a/libcfs/include/libcfs/libcfs_debug.h b/libcfs/include/libcfs/libcfs_debug.h
index 379bc9c4f8067928f6560ac2eaf9a67644fbf08a..8487c39ad9a746f883c58749a3bca8b6dca25900 100644
--- a/libcfs/include/libcfs/libcfs_debug.h
+++ b/libcfs/include/libcfs/libcfs_debug.h
@@ -103,7 +103,7 @@ struct ptldebug_header {
 #define S_ECHO        0x00008000
 #define S_LDLM        0x00010000
 #define S_LOV         0x00020000
-/* unused */
+#define S_LQUOTA      0x00040000
 /* unused */
 /* unused */
 /* unused */
diff --git a/libcfs/libcfs/debug.c b/libcfs/libcfs/debug.c
index dd40428822844643db43db89745fad283b7f9f1d..07287595a500d263b28bd073f6f92e320dadd5aa 100644
--- a/libcfs/libcfs/debug.c
+++ b/libcfs/libcfs/debug.c
@@ -162,6 +162,8 @@ libcfs_debug_subsys2str(int subsys)
                 return "ldlm";
         case S_LOV:
                 return "lov";
+        case S_LQUOTA:
+                return "lquota";
         case S_LMV:
                 return "lmv";
         case S_SEC:
diff --git a/lnet/utils/debug.c b/lnet/utils/debug.c
index 2b85a04a4fb6861cf456a684c22c8dc2fd27ac26..801ba95d218ab9f90812ce2db713d9e55a287ecf 100644
--- a/lnet/utils/debug.c
+++ b/lnet/utils/debug.c
@@ -61,7 +61,7 @@ static const char *libcfs_debug_subsystems[] =
          "ost", "class", "log", "llite",
          "rpc", "mgmt", "lnet", "lnd",
          "pinger", "filter", "", "echo",
-         "ldlm", "lov", "", "",
+         "ldlm", "lov", "lquota", "",
          "", "", "", "lmv",
          "", "sec", "gss", "", 
          "mgc", "mgs", "fid", "fld", NULL};