diff --git a/src/rspro_client_fsm.c b/src/rspro_client_fsm.c
index 6be2fef..eea8471 100644
--- a/src/rspro_client_fsm.c
+++ b/src/rspro_client_fsm.c
@@ -162,8 +162,10 @@
 		case IPAC_PROTO_EXT_RSPRO:
 			LOGPFSM(srvc->fi, "Received RSPRO %s\n", msgb_hexdump(msg));
 			pdu = rspro_dec_msg(msg);
-			if (!pdu)
+			if (!pdu) {
+				rc = -EIO;
 				break;
+			}
 			rc = srvc->handle_rx(srvc, pdu);
 			ASN_STRUCT_FREE(asn_DEF_RsproPDU, pdu);
 			break;