diff --git a/src/quic_conn.c b/src/quic_conn.c
index 5b04dbfc1..5feda3b3e 100644
--- a/src/quic_conn.c
+++ b/src/quic_conn.c
@@ -1448,8 +1448,10 @@ int quic_conn_release(struct quic_conn *qc)
 	}
 
 	/* Substract last congestion window from global memory counter. */
-	cshared_add(&quic_mem_diff, -qc->path->cwnd);
-	qc->path->cwnd = 0;
+	if (qc->path) {
+		cshared_add(&quic_mem_diff, -qc->path->cwnd);
+		qc->path->cwnd = 0;
+	}
 
 	/* free remaining stream descriptors */
 	node = eb64_first(&qc->streams_by_id);