diff --git a/lib/reg/pn.c b/lib/reg/pn.c
index da3ce06f430..e418246b9e4 100644
--- a/lib/reg/pn.c
+++ b/lib/reg/pn.c
@@ -566,7 +566,8 @@ static struct usr_avp *pn_trim_pn_params(evi_params_t *params)
 			val.n = p->val.n;
 			avp = new_avp(0, avp_id, val);
 		} else {
-			LM_BUG("EVI param no STR, nor INT, ignoring...\n");
+			LM_DBG("EVI param '%.*s' not STR, nor INT (%d), ignoring...\n",
+			       p->name.len, p->name.s, p->flags);
 			continue;
 		}