diff --git a/src/hnbap_common.c b/src/hnbap_common.c
index be7d5702..67cc30c3 100644
--- a/src/hnbap_common.c
+++ b/src/hnbap_common.c
@@ -103,6 +103,9 @@ char *hnbap_cause_str(HNBAP_Cause_t *cause)
 			get_value_string(hnbap_cause_misc_vals,
 					cause->choice.misc));
 		break;
+	case HNBAP_Cause_PR_NOTHING:
+		snprintf(buf, sizeof(buf), "NOTHING");
+		break;
 	}
 	return buf;
 }