diff --git a/openbsc/src/libmsc/smpp_smsc.h b/openbsc/src/libmsc/smpp_smsc.h
index b95a1f5..d8e82e4 100644
--- a/openbsc/src/libmsc/smpp_smsc.h
+++ b/openbsc/src/libmsc/smpp_smsc.h
@@ -97,7 +97,7 @@
 struct osmo_smpp_cmd *smpp_cmd_find_by_seqnum(struct osmo_esme *esme,
 					      uint32_t sequence_number);
 void smpp_cmd_ack(struct osmo_smpp_cmd *cmd);
-void smpp_cmd_err(struct osmo_smpp_cmd *cmd);
+void smpp_cmd_err(struct osmo_smpp_cmd *cmd, uint32_t status);
 void smpp_cmd_flush_pending(struct osmo_esme *esme);
 
 struct smsc {