diff --git a/usr.sbin/uhsoctl/uhsoctl.c b/usr.sbin/uhsoctl/uhsoctl.c
index 686d45ffd17..9dc13ab3df8 100644
--- a/usr.sbin/uhsoctl/uhsoctl.c
+++ b/usr.sbin/uhsoctl/uhsoctl.c
@@ -452,6 +452,7 @@ set_nameservers(struct ctx *ctx, const char *respath, int ns, ...)
 			free(ctx->ns[i]);
 		}
 		free(ctx->ns);
+		ctx->ns = NULL;
 	}
 
 	fd = open(respath, O_RDWR | O_CREAT | O_NOFOLLOW, 0666);