diff --git a/src/stratifier.c b/src/stratifier.c
index ca7b57ee..d5c052d4 100644
--- a/src/stratifier.c
+++ b/src/stratifier.c
@@ -523,7 +523,7 @@ static void purge_share_hashtable(sdata_t *sdata, int64_t wb_id)
 	HASH_ITER(hh, sdata->shares, share, tmp) {
 		if (share->workbase_id < wb_id) {
 			HASH_DEL(sdata->shares, share);
-			free(share);
+			dealloc(share);
 			purged++;
 		}
 	}
@@ -2069,6 +2069,7 @@ static int send_recv_auth(stratum_instance_t *client)
 out_fail:
 	ret = -1;
 out:
+	free(buf);
 	return ret;
 }