diff --git a/src/gb/gprs_ns2_internal.h b/src/gb/gprs_ns2_internal.h
index 68f28db..98b3f29 100644
--- a/src/gb/gprs_ns2_internal.h
+++ b/src/gb/gprs_ns2_internal.h
@@ -88,8 +88,10 @@
 enum ns_ctr {
 	NS_CTR_PKTS_IN,
 	NS_CTR_PKTS_OUT,
+	NS_CTR_PKTS_OUT_DROP,
 	NS_CTR_BYTES_IN,
 	NS_CTR_BYTES_OUT,
+	NS_CTR_BYTES_OUT_DROP,
 	NS_CTR_BLOCKED,
 	NS_CTR_DEAD,
 	NS_CTR_REPLACED,